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A048905
Indices of octagonal numbers which are also heptagonal.
+0
3
1, 315, 151669, 73103983, 35235967977, 16983663460771, 8186090552123485, 3945678662460058839, 1901808929215196236753, 916667958203062126055947, 441832054044946729562729541, 212962133381706120587109582655
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.
AT&T Labs Research
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