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A032159
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"CGK" (necklace, element, unlabeled) transform of 1,3,5,7,...
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1
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1, 1, 3, 8, 15, 37, 83, 184, 443, 1007, 2369, 5536, 12941, 30203, 70383, 164822, 380489, 887367, 2051543, 4727014, 10906833, 25042049, 57393717, 130934806, 298811135, 679012501, 1538770499, 3479066516, 7844360471
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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LINKS
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PROG
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(PARI) seq(n)=[subst(serlaplace(p/y), y, 1) | p <- Vec(y-1+prod(k=1, n, (1 + x^k*y + O(x*x^n))^(2*k-1)))] \\ Andrew Howroyd, Sep 13 2018
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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