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A074596 Numerator of 3 * H(n,3,1), a generalized harmonic number. See A075135. 2
3, 15, 117, 627, 8571, 35649, 699171, 7898361, 40404717, 41219817, 1300637127, 22464584559, 843217244283, 854342788713, 7181761691859, 864748487122557, 6116114629522299, 6175362432667599, 6231378537459519, 182250420468103851 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..20.

MATHEMATICA

Table[ Numerator[ Sum[1/i, {i, 1/3, n}]], {n, 1, 20}]

CROSSREFS

The denominators are in A051536.

Cf. A075135.

Sequence in context: A166885 A082163 A190629 * A087806 A245043 A225109

Adjacent sequences:  A074593 A074594 A074595 * A074597 A074598 A074599

KEYWORD

easy,frac,nonn

AUTHOR

Robert G. Wilson v, Aug 27 2002

STATUS

approved

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Last modified September 17 04:03 EDT 2019. Contains 327119 sequences. (Running on oeis4.)