id:A014640 - OEIS Search Results

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Even heptagonal numbers (A000566).

+0
5

0, 18, 34, 112, 148, 286, 342, 540, 616, 874, 970, 1288, 1404, 1782, 1918, 2356, 2512, 3010, 3186, 3744, 3940, 4558, 4774, 5452, 5688, 6426, 6682, 7480, 7756, 8614, 8910, 9828, 10144, 11122, 11458, 12496, 12852, 13950, 14326, 15484, 15880, 17098, 17514, 18792 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`G.f.:-2x(2x^3+21x^2+8x+9)/((x+1)^2(x-1)^3) [From Maksym Voznyy (voznyy(AT)mail.ru), Aug 11 2009]`
	CROSSREFS	`Cf. A000566, A014637, A014773, A014792.` `Sequence in context: A093478 A044063 A044444 this_sequence A160844 A040306 A073332` `Adjacent sequences: A014637 A014638 A014639 this_sequence A014641 A014642 A014643`
	KEYWORD	`nonn`
	AUTHOR	`Mohammad K. Azarian (ma3(AT)evansville.edu)`
	EXTENSIONS	`Extended and description corrected by Patrick De Geest (pdg(AT)worldofnumbers.com)`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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