A032136 "CFJ" (necklace, size, labeled) transform of 1,2,3,4...

1, 1, 2, 9, 16, 85, 876, 2359, 11320, 86265, 2064700, 6086971, 37979844, 226139797, 2607277050, 117848675715, 402264826576, 2747761713745, 18051206547132, 155733808506211, 2301810017460220, 187092586844572941, 714557570758041802, 5548996853444210827

Offset

0,3

Links

Andrew Howroyd, Table of n, a(n) for n = 0..200

Index entries for sequences related to Lyndon words

C. G. Bower, Transforms (2)

Prog

(PARI) seq(n)=[subst(serlaplace(p/y), y, 1) | p <- Vec(y-1+serlaplace(prod(k=1, n, (1 + k*x^k*y/k! + O(x*x^n)))))] \\ Andrew Howroyd, Sep 12 2018

Crossrefs

Sequence in context: A055259 A032299 A032211 * A032040 A045661 A369647

Adjacent sequences: A032133 A032134 A032135 * A032137 A032138 A032139

Keyword

nonn

Author

Christian G. Bower

Extensions

a(0)=1 prepended and terms a(21) and beyond from Andrew Howroyd, Sep 12 2018

Status

approved