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A032157 "CGK" (necklace, element, unlabeled) transform of 2,1,1,1,... 1
1, 2, 2, 3, 5, 6, 10, 17, 21, 30, 46, 79, 97, 142, 190, 285, 465, 590, 826, 1131, 1541, 2142, 3458, 4281, 6037, 8030, 10974, 14295, 19993, 29806, 37822, 51517, 68449, 91326, 119610, 158315, 208525, 306606, 381674, 515193, 669605 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

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)=[subst(serlaplace(p/y), y, 1) | p <- Vec(y-1+(1 + x*y)*prod(k=1, n, 1 + x^k*y + O(x*x^n)))] \\ Andrew Howroyd, Sep 13 2018

CROSSREFS

Sequence in context: A227360 A111077 A283189 * A153926 A035425 A139074

Adjacent sequences:  A032154 A032155 A032156 * A032158 A032159 A032160

KEYWORD

nonn

AUTHOR

Christian G. Bower

EXTENSIONS

a(0)=1 prepended by Andrew Howroyd, Sep 13 2018

STATUS

approved

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Last modified October 18 03:09 EDT 2018. Contains 316302 sequences. (Running on oeis4.)