id:A056827 - OEIS Search Results

Search: id:A056827

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[n^2/6].

+0
8

0, 0, 0, 1, 2, 4, 6, 8, 10, 13, 16, 20, 24, 28, 32, 37, 42, 48, 54, 60, 66, 73, 80, 88, 96, 104, 112, 121, 130, 140, 150, 160, 170, 181, 192, 204, 216, 228, 240, 253, 266, 280, 294, 308, 322, 337, 352, 368, 384, 400, 416, 433, 450, 468, 486, 504 (list; graph; listen)

	OFFSET	`0,5`
	FORMULA	`G.f.: x^3(1+x^2)/((1+x)(1-x)^3*(1+x+x^2)(1-x+x^2)). a(n+1)-a(n)=A123919(n). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 22 2008]`
	CROSSREFS	`Cf. A000290, A007590, A000212, A002620, A118015, A118013.` `Sequence in context: A165453 A025224 A096182 this_sequence A024172 A085577 A121832` `Adjacent sequences: A056824 A056825 A056826 this_sequence A056828 A056829 A056830`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Sep 02 2000`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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