A032149 "CGJ" (necklace, element, labeled) transform of 1,2,3,4...

1, 1, 2, 9, 22, 145, 936, 4459, 52060, 376905, 3039940, 39240091, 420688104, 4175453737, 49517332242, 857400548775, 9885572962696, 120164315812225, 2162210359719852, 36242822778024691, 542315443367722240, 7358279105365617681, 162325807196140641922

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 + x^k*y/k! + O(x*x^n))^k)))] \\ Andrew Howroyd, Sep 11 2018

Crossrefs

Sequence in context: A254710 A193758 A368626 * A032054 A027702 A051897

Adjacent sequences: A032146 A032147 A032148 * A032150 A032151 A032152

Keyword

nonn

Author

Christian G. Bower

Extensions

a(0)=1 prepended and terms a(20) and beyond from Andrew Howroyd, Sep 11 2018

Status

approved