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A032140
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"CFK" (necklace, size, unlabeled) transform of 2,1,1,1...
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1
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1, 2, 1, 3, 3, 4, 8, 9, 13, 16, 32, 35, 53, 68, 92, 157, 193, 264, 356, 487, 609, 1036, 1224, 1729, 2237, 3072, 3904, 5227, 7853, 9764, 13148, 17261, 22817, 29512, 38980, 48999, 72953, 88828, 119376, 152449, 202941, 255592, 337472
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OFFSET
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0,2
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LINKS
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PROG
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(PARI) seq(n)={apply(p->subst(serlaplace(p/y), y, 1), Vec(y-1 + (1 + 2*x*y)*prod(k=2, n, 1 + x^k*y + O(x*x^n))))} \\ Andrew Howroyd, Jun 21 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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