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A028556
Palindromes of form n(n+4).
+0
1
0, 5, 77, 252, 525, 1221, 2112, 21312, 56165, 73437, 276672, 1265621, 2114112, 2509052, 29311392, 69555596, 71588517, 122434221, 126000621, 540888045, 5401221045, 21183638112, 69069096096, 71149694117, 79158385197
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.
AT&T Labs Research
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