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Search: id:A046166
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A046166 Number of minimal covers on n objects with 5 members. +0
4
0, 0, 0, 0, 1, 171, 17066, 1298346, 83384427, 4762648737, 249485204452, 12226539786912, 568267449522773, 25296121946918823, 1086375882592194558, 45264846407024660598, 1837809636559394481439, 72965749033508656346829 (list; graph; listen)
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: A016058 A152926 A127959 this_sequence A145625 A097844 A076573

Adjacent sequences: A046163 A046164 A046165 this_sequence A046167 A046168 A046169

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com)

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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