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A046188
Indices of octagonal numbers which are also pentagonal.
+0
3
1, 8, 725, 8844, 836265, 10205584, 965048701, 11777234708, 1113665364305, 13590918647064, 1285168865358885, 15683908341476764, 1483083756958788601, 18099216635145538208, 1711477370361576686285
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Maintained by
N. J. A. Sloane
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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.
AT&T Labs Research
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