A093058 Numbers k such that numerator of Bernoulli(2k) is divisible by the square of 59, the second irregular prime.

457, 1298, 2168, 3009, 3481, 3879, 4720, 5590, 6431, 6962, 7301, 8142, 9012, 9853, 10443, 10723, 11564, 12434, 13275, 13924, 14145, 14986, 15856, 16697, 17405, 17567, 18408

Offset

1,1

Links

Table of n, a(n) for n=1..27.

Eric Weisstein's World of Mathematics, Bernoulli Number.

Formula

If we omit multiples of 3481 and take first differences, it appears that we get a common difference of {841, 870} repeated.

Mathematica

Select[ Range[ 9695], Mod[ Numerator[ BernoulliB[2# ]], 59^2] == 0 &]

Crossrefs

Cf. A000928, A091216, A092221.

Sequence in context: A142828 A020364 A337847 * A201257 A252400 A252399

Adjacent sequences: A093055 A093056 A093057 * A093059 A093060 A093061

Keyword

nonn

Author

Robert G. Wilson v, Feb 26 2004

Extensions

More terms from Eric W. Weisstein, Mar 19 2004

Status

approved