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A048165
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Expansion of Product_{k > 0} 1/(1 + x^prime(k)).
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14
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1, 0, -1, -1, 1, 0, 0, -1, 1, 0, 1, -2, 1, -1, 2, -2, 2, -3, 3, -3, 4, -4, 5, -6, 6, -6, 8, -9, 9, -11, 12, -13, 14, -16, 19, -19, 21, -25, 26, -28, 32, -36, 38, -41, 46, -50, 55, -60, 65, -70, 77, -85, 91, -99, 108, -116, 126, -138, 149, -160, 174, -188, 202, -219, 237, -255, 274, -296
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OFFSET
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0,12
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LINKS
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FORMULA
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MATHEMATICA
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nn=20;
ser=Product[1/(1+x^p), {p, Select[Range[nn], PrimeQ]}];
Table[SeriesCoefficient[ser, {x, 0, n}], {n, nn}] (* Gus Wiseman, Jun 06 2018 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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