id:A055788 - OEIS Search Results

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Number of symmetric types of (5,2n)-hypergraphs under action of complementing group C(5,2).

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1, 31, 186, 1581, 7316, 30039, 103974, 330429, 947050, 2533289, 6325550, 14969435, 33665380, 72544185, 150236850, 300540195, 582235491, 1096087770, 2009383420, 3595937070, 6292703640, 10787811210, 18142828740, 29975617710 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`G.f.: (62/(1-x^2)^16-310/(1-x^4)^8+1240/(1-x^8)^4-1984/(1-x^16)^2+1024/(1-x^32))/32.`
	CROSSREFS	`Cf. A051502.` `Sequence in context: A142140 A139496 A145838 this_sequence A042876 A042878 A165130` `Adjacent sequences: A055785 A055786 A055787 this_sequence A055789 A055790 A055791`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Jul 13 2000`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), Aug 22 2000`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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