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A074598 Numerator of 4 * H(n,4,1), a generalized harmonic number. See A075136. 2
4, 24, 236, 3248, 57556, 416152, 2136452, 63349408, 710302388, 26725332056, 1112171931196, 375714836272, 2662087948804, 142662781936712, 2738366988282628, 168623511779891008, 170109214167178588 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..17.

MATHEMATICA

Table[ Numerator[ Sum[1/i, {i, 1/4, n}]], {n, 1, 20}]

CROSSREFS

The denominators are in A051539.

Cf. A075136.

Sequence in context: A234012 A244760 A240403 * A307826 A239840 A052718

Adjacent sequences:  A074595 A074596 A074597 * A074599 A074600 A074601

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.)