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A033470
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Numerator of Bernoulli(2n,1/3).
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2
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1, -1, 13, -121, 1093, -49205, 61203943, -5580127, 25949996501, -2832495743227, 101471818419863, -4469253897850313, 11126033443528968583, -3623473373642099263, 90551915146257709805297, -295654219044074800178128205
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OFFSET
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0,3
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LINKS
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MAPLE
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with(numtheory): seq(numer(bernoulli(2*n, 1/3)), n=0..20);
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MATHEMATICA
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Table[Numerator @ BernoulliB[2*n, 1/3], {n, 0, 15}] (* Amiram Eldar, Sep 16 2020 *)
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PROG
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(PARI) a(n) = numerator(subst(bernpol(2*n), x, 1/3)); \\ Michel Marcus, Sep 16 2020
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CROSSREFS
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KEYWORD
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sign,frac
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AUTHOR
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STATUS
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approved
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