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A272186 Numbers n such that Bernoulli number B_{n} has denominator 690. 27
44, 484, 748, 2596, 2684, 3124, 4444, 4708, 6556, 6908, 7964, 8228, 9812, 9988, 11308, 11572, 11836, 11924, 12452, 13684, 13772, 13948, 14828, 15356, 15532, 16148, 16676, 16852, 17468, 17644, 18524, 19316, 19756, 20108, 20284, 20372, 21076, 22924, 23012, 24068, 24772, 25124, 25828, 26444 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
690 = 2 * 3 * 5 * 23.
All terms are multiple of a(1) = 44.
For these numbers Numerator(B_{n}) mod Denominator(B_{n}) = 637.
LINKS
EXAMPLE
Bernoulli B_{44} is -27833269579301024235023/690, hence 44 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, 690);
PROG
(PARI) isok(n) = denominator(bernfrac(n)) == 690; \\ Michel Marcus, Apr 22 2016
CROSSREFS
Sequence in context: A306036 A160150 A210119 * A222514 A282645 A283541
KEYWORD
nonn
AUTHOR
Paolo P. Lava, Apr 22 2016
EXTENSIONS
a(9)-a(14) from Michel Marcus, Apr 22 2016
More terms from Altug Alkan, Apr 22 2016
STATUS
approved

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Last modified May 21 08:56 EDT 2024. Contains 372733 sequences. (Running on oeis4.)