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A048903 Heptagonal hexagonal numbers. +0
3
1, 121771, 12625478965, 1309034909945503, 135723357520344181225, 14072069153115290487843091, 1459020273797576190840203197981, 151274140013808225465578657485241095 (list; graph; listen)
OFFSET

1,2

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

CROSSREFS

Cf. A048901, A048902.

Sequence in context: A135495 A067384 A066881 this_sequence A115545 A104973 A077301

Adjacent sequences: A048900 A048901 A048902 this_sequence A048904 A048905 A048906

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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