id:A081282 - OEIS Search Results

Search: id:A081282

Displaying 1-1 of 1 results found.

page 1

Generalized centered polygonal numbers.

+0
3

0, 1, 6, 22, 62, 147, 308, 588, 1044, 1749, 2794, 4290, 6370, 9191, 12936, 17816, 24072, 31977, 41838, 53998, 68838, 86779, 108284, 133860, 164060, 199485, 240786, 288666, 343882, 407247, 479632, 561968, 655248, 760529, 878934, 1011654 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Partial sums of A006007.`
	FORMULA	`a(n)=2C(n+3, 5)+C(n+2, 3). G.f.: x(1+x^2)/(1-x)^6.`
	CROSSREFS	`Cf. A081284.` `Adjacent sequences: A081279 A081280 A081281 this_sequence A081283 A081284 A081285` `Sequence in context: A071239 A105450 A011888 this_sequence A001769 A120477 A053739`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 17 2003`

page 1

Search completed in 0.002 seconds

Last modified January 8 02:43 EST 2009. Contains 152824 sequences.

AT&T Labs Research