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A032234 "DGK" (bracelet, element, unlabeled) transform of 1,3,5,7,... 1
1, 1, 3, 8, 15, 34, 67, 135, 285, 598, 1314, 2946, 6702, 15403, 35569, 82884, 190820, 444384, 1026605, 2364499, 5454576, 12522380, 28698420, 65469202, 149407615, 339508581, 769387875, 1739536216, 3922183539, 8828954730 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Andrew Howroyd, Table of n, a(n) for n = 0..500

C. G. Bower, Transforms (2)

PROG

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

CROSSREFS

Sequence in context: A277224 A090741 A255835 * A032255 A137475 A176433

Adjacent sequences:  A032231 A032232 A032233 * A032235 A032236 A032237

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 23:02 EDT 2018. Contains 316431 sequences. (Running on oeis4.)