id:A105204 - OEIS Search Results

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Number of compositions of n such that the greatest part occurs with even multiplicity.

+0
1

0, 1, 0, 2, 3, 8, 13, 27, 51, 105, 210, 424, 848, 1702, 3405, 6818, 13638, 27274, 54525, 109000, 217886, 435562, 870738, 1740829, 3480614, 6959663, 13917156, 27831708, 55661156, 111322666, 222653729, 445335854, 890744837, 1781656704, 3563668755 (list; graph; listen)

	OFFSET	`1,4`
	FORMULA	`G.f.: Sum((1-x)^(2j+1)Sum(x^(2jk)/(1-2x+x^k)^(2j+1),k=1..infinity),j=1..infinity).`
	CROSSREFS	`Cf. A105201, A105200.` `Sequence in context: A147357 A004138 A116503 this_sequence A045692 A103196 A113954` `Adjacent sequences: A105201 A105202 A105203 this_sequence A105205 A105206 A105207`
	KEYWORD	`easy,nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 12 2005`
	EXTENSIONS	`Edited by Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), May 04 2006`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

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