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A190950
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Denominators corresponding to A190948.
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1
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1, 2, 5, 1, 85, 221, 8177, 204425, 204425, 8381425, 13023445, 10327591885, 1497500823325, 115192371025, 1334876299525, 512859474277505, 131804884889318785, 38766142614505525, 100791970797714365, 91216733571931500325, 7315582032468906326065, 124364894551971407543105, 60316973857706132658405925, 3196799614458425030895514025
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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) a(n) = denominator(sum(k=0, n, binomial(n, k)*(-1)^k/(k^2+1))); \\ Michel Marcus, Jan 08 2024
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CROSSREFS
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KEYWORD
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nonn,frac
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AUTHOR
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STATUS
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approved
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