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 A271635 Numbers n such that Bernoulli number B_{n} has denominator 138. 27
 22, 154, 242, 286, 374, 814, 1034, 1078, 1298, 1342, 1474, 1562, 1694, 1738, 2134, 2222, 2354, 2794, 3014, 3058, 3146, 3278, 3454, 3586, 3674, 3982, 4114, 4246, 4334, 4378, 4906, 4994, 5654, 5698, 5786, 5918, 5962, 6094, 6226, 6754, 6842, 6886, 6974, 7414, 7634, 7678, 7766 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS 138 = 2 * 3 * 23. All terms are multiple of a(1) = 22. For these numbers numerator(B_{n}) mod denominator(B_{n}) = 17. LINKS Seiichi Manyama, Table of n, a(n) for n = 1..1000 EXAMPLE Bernoulli B_{22} is 854513/138, hence 22 is in the sequence. MAPLE with(numtheory): P:=proc(q, h) local n;  for n from 2 by 2 to q do if denom(bernoulli(n))=h then print(n); fi; od; end: P(10^6, 138); MATHEMATICA Select[Range[0, 1000], Denominator[BernoulliB[#]] == 138 &] (* Robert Price, Apr 21 2016 *) PROG (PARI) isok(n) = denominator(bernfrac(n)) == 138; \\ Michel Marcus, Apr 22 2016 CROSSREFS Cf. A045979, A051222, A051225, A051226, A051227, A051228, A051229, A051230, A119456, A119480, A249134, A255684, A271634, A272138, A272139, A272140, A272183, A272184, A272185, A272186. Sequence in context: A225008 A240384 A245380 * A130438 A041934 A027943 Adjacent sequences:  A271632 A271633 A271634 * A271636 A271637 A271638 KEYWORD nonn,easy AUTHOR Paolo P. Lava, Apr 21 2016 EXTENSIONS More terms from Michel Marcus, Apr 22 2016 STATUS approved

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Last modified April 19 10:39 EDT 2019. Contains 322255 sequences. (Running on oeis4.)