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 A115023 Numerator of the sum s(n) of the reciprocals of the Bernoulli numbers B(2k), k=0..n. 1
 7, -23, 19, -11, 11, -6049, -21613, -90508571, -3900532722347, -682342247955237967, -582977855082068353785701, -137796593884898105670153879336641, -1178587648547585802037207041523952332253, -3998688919354698660438533512261373544028557044041 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Colin Barker, Table of n, a(n) for n = 1..41 PROG (PARI) partial_sums(v) = {my(w=vector(#v)); w[1]=v[1]; for(i=2, #v, w[i]=w[i-1]+v[i]); w} a115023(size) = {p=partial_sums(vector(size, k, k--; 1/bernfrac(2*k))); vector(size, k, numerator(p[k]))} a115023(20) \\ Colin Barker, May 19 2015 CROSSREFS Sequence in context: A175483 A121815 A025172 * A009228 A249438 A349230 Adjacent sequences: A115020 A115021 A115022 * A115024 A115025 A115026 KEYWORD sign,frac AUTHOR Pasquale Cutolo (p.cutolo(AT)inwind.it), Feb 24 2006 STATUS approved

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Last modified May 23 02:40 EDT 2024. Contains 372758 sequences. (Running on oeis4.)