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A048902
Indices of heptagonal numbers (
A000566
) which are also hexagonal.
+0
3
1, 221, 71065, 22882613, 7368130225, 2372515049741, 763942477886281, 245987105364332645, 79207083984837225313, 25504435056012222218045, 8212348880951950716985081, 2644350835231472118646977941
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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