On [ April 18, 2000 ] I found (Patrick De Geest) two new,
sitting closely together, record Palindromic Triangular numbers [137 & 138].
They are the first ones discovered in this new millennium.
These beautiful palindromes have a staggering length of 41 digits !
| A000038 Prime Curios! Prime Puzzle |
Wikipedia 38 Le Nombre 38 Numberland 38
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