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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 (list; graph; refs; listen; history; text; internal format)
 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

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Last modified June 3 22:46 EDT 2023. Contains 363116 sequences. (Running on oeis4.)