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A032233
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"DGK" (bracelet, element, unlabeled) transform of 1,2,3,4,...
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1
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1, 1, 2, 5, 8, 16, 28, 49, 89, 162, 301, 566, 1103, 2126, 4114, 8278, 16111, 31883, 62595, 123856, 243854, 476615, 933833, 1820731, 3567964, 6904993, 13397093, 25924377, 50076418, 96470672, 185158835, 355097237
(list;
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listen;
history;
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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 + 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))^k))] \\ 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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