A032207 - OEIS

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A032207

Number of connected functions on n points with a loop of length 11.

2

1, 1, 7, 39, 189, 832, 3415, 13289, 49594, 178972, 628397, 2156842, 7263306, 24068685, 78667879, 254101597, 812408511, 2574398860, 8094625175, 25278311063, 78465711029, 242265995076, 744465052503, 2278029840583, 6944364119469, 21097626446747, 63901611553272

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OFFSET

11,3

LINKS

Andrew Howroyd, Table of n, a(n) for n = 11..500

Christian G. Bower, Transforms (2)

FORMULA

"CIK[ 11 ]" (necklace, indistinct, unlabeled, 11 parts) transform of A000081.

a(n) ~ A187770 * A051491^n / n^(3/2). - Vaclav Kotesovec, Dec 25 2020

CROSSREFS

Column 11 of A339428.

Sequence in context: A196782 A128554 A225617 * A004057 A081898 A034267

Adjacent sequences: A032204 A032205 A032206 * A032208 A032209 A032210

KEYWORD

nonn

AUTHOR

Christian G. Bower

EXTENSIONS

Terms a(35) and beyond from Andrew Howroyd, Dec 04 2020

STATUS

approved