A046166 - OEIS

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A046166

Number of minimal covers on n objects with 5 members.

0, 0, 0, 0, 1, 171, 17066, 1298346, 83384427, 4762648737, 249485204452, 12226539786912, 568267449522773, 25296121946918823, 1086375882592194558, 45264846407024660598, 1837809636559394481439, 72965749033508656346829 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,6`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	FORMULA	`G.f.: x^5/[(1-26x)(1-27x)(1-28x)(1-29x)(1-30x)(1-31x)].`
	CROSSREFS	`Cf. A035348.` `Sequence in context: A152926 A206595 A127959 * A145625 A097844 A076573` `Adjacent sequences: A046163 A046164 A046165 * A046167 A046168 A046169`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`

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Last modified February 15 09:54 EST 2012. Contains 205763 sequences.