A032150 "CGJ" (necklace, element, labeled) transform of 1,3,5,7...

1, 1, 3, 14, 45, 374, 2560, 19172, 236145, 2051870, 26635476, 363996632, 4321714980, 71766211464, 1127739971072, 17315941180540, 312700502653721, 6094341068758734, 110314386554987020, 2097555771605899856, 48644259993732339024, 1028684380017105071404

Offset

0,3

Links

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

C. G. Bower, Transforms (2)

Eric Weisstein's World of Mathematics, Pi Digits.

Index entries for sequences related to Lyndon words

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))^(2*k-1))))] \\ Andrew Howroyd, Sep 11 2018

Crossrefs

Sequence in context: A302225 A032316 A032225 * A032055 A180785 A123350

Adjacent sequences: A032147 A032148 A032149 * A032151 A032152 A032153

Keyword

nonn

Author

Christian G. Bower

Extensions

a(0)=1 prepended and terms a(19) and beyond from Andrew Howroyd, Sep 11 2018

Status

approved