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A032225 "DGJ" (bracelet, element, labeled) transform of 1,3,5,7... 1
1, 1, 3, 14, 45, 284, 1570, 10527, 120589, 1032992, 13335366, 182043905, 2160966588, 35883374045, 563870609289, 8657972073051, 156350254702885, 3047170542210952, 55157193295047166, 1048777885842926925, 24322129996954683064, 514342190008751240895, 10665644686998892803631 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

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

C. G. Bower, Transforms (2)

PROG

(PARI) seq(n)=[subst(serlaplace(p/y + polcoeff(p, 1) + polcoeff(p, 2)), y, 1)/2 | p <- Vec(serlaplace(y-1+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: A059672 A302225 A032316 * A032150 A032055 A180785

Adjacent sequences:  A032222 A032223 A032224 * A032226 A032227 A032228

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

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Last modified October 15 13:52 EDT 2018. Contains 316236 sequences. (Running on oeis4.)