id:A086954 - OEIS Search Results

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Binomial transform of A061800.

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1, 1, 4, 14, 38, 92, 214, 490, 1108, 2474, 5462, 11948, 25942, 55978, 120148, 256682, 546134, 1157804, 2446678, 5155498, 10835284, 22719146, 47535446, 99265196, 206918998, 430615210, 894784852, 1856678570, 3847574870, 7963585196 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n)=0^n+n2^(n-1)+sum{k=0..floor((n-1)/3) C(n-1, 3k+2) }` `O.g.f.: (1-x)(1-3x+5x^2)/[(1-x+x^2)(-1+2x)^2]. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 02 2008`
	CROSSREFS	`Sequence in context: A126943 A036368 A006071 this_sequence A111583 A124615 A114845` `Adjacent sequences: A086951 A086952 A086953 this_sequence A086955 A086956 A086957`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jul 25 2003`

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Last modified December 4 12:48 EST 2009. Contains 170310 sequences.

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