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A028504
Palindromes of form n(n+2); or palindromes 1 less than a square.
+0
2
0, 3, 8, 99, 323, 575, 4224, 5775, 9999, 36863, 42024, 999999, 3055503, 3640463, 5597955, 8803088, 32855823, 99999999, 360696063, 422919224, 9999999999, 30485858403, 30536863503, 32154945123, 59080108095, 86310801368
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.
AT&T Labs Research
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