A032142 "CFK" (necklace, size, unlabeled) transform of 1,3,5,7...

1, 1, 3, 8, 12, 31, 71, 128, 230, 555, 1437, 2248, 4646, 8137, 18279, 49590, 76264, 144351, 264615, 474526, 953766, 2712603, 3931785, 7491022, 12745506, 23133569, 38434487, 76679812, 208933080, 301358215, 553702323

Offset

0,3

Links

Andrew Howroyd, Table of n, a(n) for n = 0..1000

C. G. Bower, Transforms (2)

Index entries for sequences related to Lyndon words

Prog

(PARI) seq(n)={apply(p->subst(serlaplace(p/y), y, 1), Vec(y-1+prod(k=1, n, 1 + (2*k-1)*x^k*y + O(x*x^n))))} \\ Andrew Howroyd, Jun 21 2018

Crossrefs

Sequence in context: A027292 A032304 A032217 * A032046 A247396 A180507

Adjacent sequences: A032139 A032140 A032141 * A032143 A032144 A032145

Keyword

nonn

Author

Christian G. Bower

Extensions

a(0)=1 prepended by Andrew Howroyd, Jun 21 2018

Status

approved