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A098826
Palindromes that are 1 more than a prime and 1 less than a triangular number.
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44, 252, 434, 464, 4004, 46664, 2005002, 49099094, 414878414, 431313134, 4370654560734, 200000050000002, 417622181226714, 202837977779738202, 2574289191919824752
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.
AT&T Labs Research
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