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A032142 "CFK" (necklace, size, unlabeled) transform of 1,3,5,7... 1
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified October 21 19:27 EDT 2018. Contains 316428 sequences. (Running on oeis4.)