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A346716 a(n) = numerator(Sum_{k=1..2*n} Bernoulli(1 + k) / ((1 + k) * k^(1 + k))). 2
0, 1, 809, 17696929, 29148363745769, 13802156299837263870439, 51192911535225069982129975520643227, 15505058537999075182938597423297191148526445182931, 25740819838475027138304706528711851561870640774224535090837 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..8.

MATHEMATICA

r[n_] := Sum[BernoulliB[1 + k] / ((1 + k) * k^(1 + k)), {k, 1, 2*n}];

Table[r[n], {n, 0, 10}] // Numerator

PROG

(PARI) a(n) = numerator(sum(k=1, 2*n, bernfrac(1+k)/((1+k)*k^(1+k)))); \\ Michel Marcus, Aug 12 2021

CROSSREFS

Cf. A346717 (denominator), A346718 (rational limit).

Sequence in context: A265984 A332848 A160561 * A156404 A282376 A203844

Adjacent sequences:  A346713 A346714 A346715 * A346717 A346718 A346719

KEYWORD

nonn,frac

AUTHOR

Peter Luschny, Aug 11 2021

STATUS

approved

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Last modified October 21 02:29 EDT 2021. Contains 348141 sequences. (Running on oeis4.)