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Thematic Weblinks Palindromic Records

Palindromic numbers are numbers which read the same from

  left to right (forwards) as from the right to left (backwards)

Here are a few random examples : 535, 3773, 246191642

If you meticulously visit and study each one then you'll be more than
introduced into the subject. Have fun! And if you find yourself a source
or reference not listed hereunder please feel free to contact me so that
I can extend and/or update this summary.

• The Perplexing Patterns of Palindromic Numbers a youtube video created by Dimitri Zucker
• PALINDROMES et NOMBRES PALINDROMES by René-Louis Clerc
• Palindrome Power by Terry Trotter (†)
• Meaning of pal‧in‧drome
• Problem of the Month (June 1999): Palindromes by Erich Friedman
• Puzzle 7.- Palindrome - Primes: 2 questions by Carlos Rivera
• Puzzle 14.- Pal-Primes and sum of powers by Carlos Rivera
• Puzzle 41.- Palindromic Carnival (dedicated to Patrick De Geest) by Carlos Rivera
• Numeric Palindrome - A Java project
• Palindromic prime - from the Prime Glossary pages.
• Numeric Palindromes by Jürgen Köller
• Palindromic Primes by Ivars Peterson
• Fascinating Palindromes by Peter Collins
• The Palindrome Order of a Number by Susan K. Eddins
• Palindromic Primes in Arithmetic Progression by Manfred Toplic
• Number Theory: Palindromes
• The Ultimate Palindrome from Madras College, St Andrews, Fife, Scotland.
• Palindromes in ANS by Bob Forslund
• Palindromic Prime by Eric W. Weisstein
• Palindromic Number Conjecture by Eric W. Weisstein
• 196-Algorithm by Eric W. Weisstein
• Palindromic Numbers - I by Dave Rusin
• Palindromic Numbers - II by Dave Rusin
• Palindromic Sophie Germaine Primes by Harvey Heinz
• Palindromic Canon in 8 parts by Nicolas Slonimsky
• On General Palindromic Numbers by Kevin Brown
• Digit Reversal Sums Leading to Palindromes by Kevin Brown
• Three years of computing by John Walker
• About Two Months of Computing by Tim Irvin
• Search for the biggest numeric palindrome by Ian J. Peter
• The Palindrome 196 Quest by Jason Allen Doucette
• Making Numbers into Palindromic Numbers
• How many palindromic numbers exist less than 100000
• Palindromic Squares by The Math Forum (Ask Dr. Math)
• Those Amazing Palindromes by Shareef Bacchus
• Palindromic Chess by David Howe
• Jeux Mathématiques et Logiques: Le palindrome 11 by Gilles Hainry
• General Generating Function For Palindromic Products of Consecutive Integers by Huen Y.K. from CAHRC
• Palindrome, Perioden und Chaoten 66 Streifzüge durch die palindromischen Gefilde by Karl Günter Kröber
• Patterns and Palindromes by Toby Howard
• Palindromes by Gerard Villemin - sort of a French mirrorsite
• Positive Integer Palindromes by Eric Schmidt
• Place Value and Palindrome Riddles by RHL School
• 196 and Other Lychrel Numbers by Wade VanLandingham

My site was reviewed and reported on in the october 2004 edition of the NSDL Scout Report for Math, Engineering and Technology. They seek to separate the proverbial 'wheat from the chaff' when it comes to the innumerable resources available on the web. My site was found to be one of great quality and merit!

1. A006960 Reverse and Add! sequence starting with 196. - N. J. A. Sloane, Simon Plouffe
2. A037076 Palindromes which are the sum of a twin prime pair. - G. L. Honacker, Jr.
3. A045638 Palindromic and divisible by 3. - Jeff Burch
4. A045639 Palindromic and divisible by 4. - Jeff Burch
5. A043040 Numbers that are palindromic and divisible by 5. - Clark Kimberling
6. A045641 Palindromic and divisible by 6. - Jeff Burch
7. A045642 Palindromic and divisible by 7. - Jeff Burch
8. A045643 Palindromic and divisible by 8. - Jeff Burch
9. A045644 Palindromic and divisible by 9. - Jeff Burch
10. A046328 Palindromes with exactly 2 prime factors (counted with multiplicity). - Patrick De Geest
11. A046329 Palindromes with exactly 3 prime factors (counted with multiplicity). - Patrick De Geest
12. A046330 Palindromes with exactly 4 prime factors (counted with multiplicity). - Patrick De Geest
13. A046331 Palindromes with exactly 5 prime factors (counted with multiplicity). - Patrick De Geest
14. A046332 Palindromes with exactly 6 prime factors (counted with multiplicity). - Patrick De Geest
15. A046333 Palindromes with exactly 7 prime factors (counted with multiplicity). - Patrick De Geest
16. A046334 Palindromes with exactly 8 prime factors (counted with multiplicity). - Patrick De Geest
17. A046335 Palindromes with exactly 9 prime factors (counted with multiplicity). - Patrick De Geest
18. A046336 Palindromes with exactly 10 prime factors (counted with multiplicity). - Patrick De Geest
19. A046338 Palindromes with an even number of prime factors (counted with multiplicity). - Patrick De Geest
20. A046341 Palindromes with an odd number of prime factors (counted with multiplicity). - Patrick De Geest
21. A046345 Sum of the prime factors of the palindromic composite numbers (counted with multiplicity). - Patrick De Geest
22. A046348 Palindromes divisible by the sum of their prime factors (counted with multiplicity). - Patrick De Geest
23. A046352 Numbers whose sum of prime factors is palindromic (counted with multiplicity). - Patrick De Geest
24. A046353 Odd numbers whose sum of prime factors is palindromic (counted with multiplicity). - Patrick De Geest
25. A046354 Palindromes whose sum of prime factors is palindromic (counted with multiplicity). - Patrick De Geest
26. A046358 Numbers divisible by the palindromic sum of their prime factors (counted with multiplicity). - Patrick De Geest
27. A046359 Odd numbers divisible by the palindromic sum of their prime factors (counted with multiplicity). - Patrick De Geest
28. A046360 Palindromes divisible by the palindromic sum of their prime factors (counted with multiplicity). - Patrick De Geest
29. A046361 a(n) divided by the palindromic sum of its prime factors is a palindrome (counted with multiplicity). - Patrick De Geest
30. A046362 Composite palindromes divided by the palindromic sum of their prime factors is a palindrome (counted with multiplicity). - Patrick De Geest
31. A046365 Palindromes whose sum of prime factors is prime (counted with multiplicity). - Patrick De Geest
32. A068664 a(1) = 1, a(n) = smallest palindromic multiple of a(n-1). - Amarnath Murthy
33. A068665 a(1) = 3, a(n) = smallest palindromic multiple of a(n-1). - Amarnath Murthy
34. A068666 a(1) = 5, a(n) = smallest palindromic multiple of a(n-1). - Amarnath Murthy
35. A068667 a(1) = 7, a(n) = smallest palindromic multiple of a(n-1). - Amarnath Murthy
36. A068668 a(1) = 9, a(n) = smallest palindromic multiple of a(n-1). - Amarnath Murthy
37. A104444 Not the difference of two palindromes (where 0 is considered a palindrome). - David W. Wilson
38. A108505 The number of palindromic semiprimes less than 10^n. - Robert G. Wilson v
39. A226486 First available increasing palindromes (A002113) found in the decimal expansion of Pi-3 (A000796). - Patrick De Geest & Robert G. Wilson v
40. A226487 First available increasing palindromes (A002113) found in the decimal expansion of the number e-2 (A001113). - Patrick De Geest & Robert G. Wilson v

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Patrick De Geest - Belgium - Short Bio - Some Pictures
E-mail address : pdg@worldofnumbers.com