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A032063 "BGK" (reversible, element, unlabeled) transform of 1,2,3,4,... 1
1, 1, 2, 5, 8, 18, 40, 77, 180, 378, 822, 1750, 3824, 8016, 16630, 36100, 74092, 154325, 317388, 657064, 1348688, 2732441, 5554850, 11203449, 22725376, 45309407, 90568158, 180428451, 358348728, 709098028, 1395536060 (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)

PROG

(PARI) seq(n)=[subst(serlaplace(y^0*p + polcoeff(p, 1)), y, 1)/2 | p <- Vec(y-1+prod(k=1, n, (1 + x^k*y + O(x*x^n))^k))] \\ Andrew Howroyd, Sep 13 2018

CROSSREFS

Sequence in context: A271619 A197211 A256723 * A133147 A082630 A025078

Adjacent sequences:  A032060 A032061 A032062 * A032064 A032065 A032066

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 21 09:35 EDT 2018. Contains 316411 sequences. (Running on oeis4.)