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A032205 Number of connected functions on n points with a loop of length 9. 0
1, 1, 6, 30, 127, 506, 1902, 6823, 23673, 79936, 264036, 856772, 2739525, 8652707, 27049259, 83824636, 257847515, 788121922, 2395786374, 7248517868, 21840785100, 65574504200, 196266067194, 585822825763 (list; graph; refs; listen; history; text; internal format)
OFFSET

9,3

LINKS

Table of n, a(n) for n=9..32.

C. G. Bower, Transforms (2)

FORMULA

"CIK[ 9 ]" (necklace, indistinct, unlabeled, 9 parts) transform of A000081.

CROSSREFS

Sequence in context: A002934 A174319 A131458 * A007465 A261389 A073389

Adjacent sequences:  A032202 A032203 A032204 * A032206 A032207 A032208

KEYWORD

nonn

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified February 22 18:00 EST 2018. Contains 299469 sequences. (Running on oeis4.)