id:A001621 - OEIS Search Results

Search: id:A001621

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n*(n+1)*(n^2+n+2)/4.

+0
2

0, 2, 12, 42, 110, 240, 462, 812, 1332, 2070, 3080, 4422, 6162, 8372, 11130, 14520, 18632, 23562, 29412, 36290, 44310, 53592, 64262, 76452, 90300, 105950, 123552, 143262, 165242, 189660, 216690 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Equals 2 * A002817 and [A058919(n-1)-1]/2.` `Sequence in context: A127725 A048014 A094702 this_sequence A055681 A111389 A013704` `Adjacent sequences: A001618 A001619 A001620 this_sequence A001622 A001623 A001624`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

AT&T Labs Research