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A046187
Indices of pentagonal numbers which are also octagonal.
+0
3
1, 11, 1025, 12507, 1182657, 14432875, 1364784961, 16655525051, 1574960662145, 19220461475787, 1817503239330177, 22180395887532955, 2097397163226361921, 25596157633751554091, 2420394508859982326465
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.
AT&T Labs Research
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