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A032135 "CFJ" (necklace, size, labeled) transform of 2,1,1,1... 1
1, 2, 1, 7, 9, 21, 268, 491, 1893, 5809, 166476, 373275, 1812374, 8077317, 38851660, 1934306029, 5374689421, 30125069097, 152234643292, 991832638619, 5660219512530, 516732891172537, 1664067117563368 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

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+serlaplace((1 + 2*x*y)*prod(k=2, n, 1 + x^k*y/k! + O(x*x^n))))] \\ Andrew Howroyd, Sep 12 2018

CROSSREFS

Sequence in context: A026252 A032298 A032210 * A032039 A203991 A075118

Adjacent sequences:  A032132 A032133 A032134 * A032136 A032137 A032138

KEYWORD

nonn

AUTHOR

Christian G. Bower

EXTENSIONS

a(0)=1 prepended by Andrew Howroyd, Sep 12 2018

STATUS

approved

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Last modified October 23 18:52 EDT 2018. Contains 316530 sequences. (Running on oeis4.)