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A029868 Number of connected functions on n points with a loop of length 5. 1
1, 1, 4, 14, 46, 145, 440, 1315, 3877, 11315, 32792, 94529, 271510, 777764, 2223865, 6350657, 18120730, 51680249, 147359335, 420163711, 1198151432, 3417475326, 9750708533, 27831153091, 79471338455, 227032777454 (list; graph; refs; listen; history; text; internal format)
OFFSET

5,3

LINKS

Table of n, a(n) for n=5..30.

C. G. Bower, Transforms

FORMULA

"CIK[ 5 ]" (necklace, indistinct, unlabeled, 5 parts) transform of A000081.

CROSSREFS

Sequence in context: A171851 A117916 A054449 * A030267 A026290 A027649

Adjacent sequences:  A029865 A029866 A029867 * A029869 A029870 A029871

KEYWORD

nonn

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified May 25 19:57 EDT 2013. Contains 225649 sequences.