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A093058
Numbers k such that numerator of Bernoulli(2k) is divisible by the square of 59, the second irregular prime.
0
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
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
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Feb 26 2004
EXTENSIONS
More terms from Eric W. Weisstein, Mar 19 2004
STATUS
approved