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A181426 Numerator of Sum[ k^4, {k,1,n} ] / Product[ k^4, {k,1,n} ]. 0
1, 17, 49, 59, 979, 91, 167, 731, 5111, 517, 1817, 6071, 109, 18241, 22289, 2771, 131, 28823, 67, 51619, 11911, 34891, 15557, 257, 1949, 22313, 2267, 14123, 153931, 5273999, 1, 3167, 45091, 3569, 268309, 126947, 4217, 127, 369641, 201679, 85739 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) = 1 for n = {1, 31, 59, 94, 104, 122, 133, 181, 206, 223, ...} = A166604.

LINKS

Table of n, a(n) for n=1..41.

MATHEMATICA

Table[ Numerator[ Sum[ k^4, {k, 1, n} ] / Product[ k^4, {k, 1, n} ] ], {n, 1, 100} ]

CROSSREFS

Cf. A090585 = Numerator of Sum/Product of first n numbers.

Cf. A125294 = Numerator of Sum[ k^2, {k, 1, n} ] / Product[ k^2, {k, 1, n} ].

Cf. A166604.

Sequence in context: A297988 A210372 A239130 * A029487 A069129 A176273

Adjacent sequences:  A181423 A181424 A181425 * A181427 A181428 A181429

KEYWORD

nonn

AUTHOR

Alexander Adamchuk, Oct 18 2010

STATUS

approved

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Last modified September 17 10:37 EDT 2019. Contains 327129 sequences. (Running on oeis4.)