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A029870 Number of connected functions on n points with a loop of length 7. +0
1
1, 1, 5, 21, 80, 285, 970, 3192, 10236, 32197, 99743, 305276, 925342, 2783012, 8316994, 24726109, 73195582, 215911767, 635028054, 1863156727, 5455350409, 15946267328, 46545783253, 135702643984, 395246786050 (list; graph; listen)
OFFSET

7,3
LINKS

C. G. Bower, Transforms

FORMULA

"CIK[ 7 ]" (necklace, indistinct, unlabeled, 7 parts) transform of A000081.

CROSSREFS

Sequence in context: A055219 A108863 A027172 this_sequence A081038 A051196 A094834

Adjacent sequences: A029867 A029868 A029869 this_sequence A029871 A029872 A029873

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net)

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.

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