This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

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