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A272140 Numbers n such that Bernoulli number B_{n} has denominator 1590. 27
52, 104, 988, 1976, 3068, 3172, 5252, 5356, 5564, 6136, 6344, 7124, 7748, 8164, 8684, 10244, 10712, 12532, 13364, 13676, 13988, 14092, 16276, 16328, 17212, 17368, 17524, 18044, 18356, 19084, 19916, 20228, 20488, 20644, 22828, 23348, 23764 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
1590 = 2 * 3 * 5 * 53.
All terms are multiple of a(1) = 52.
For these numbers numerator(B_{n}) mod denominator(B_{n}) = 1507.
LINKS
EXAMPLE
Bernoulli B_{52} is -801165718135489957347924991853/1590, hence 52 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, 1590);
MATHEMATICA
Select[Range[0, 1000], Denominator[BernoulliB[#]] == 1590 &] (* Robert Price, Apr 21 2016 *)
PROG
(PARI) isok(n) = denominator(bernfrac(n)) == 1590; \\ Michel Marcus, Apr 22 2016
CROSSREFS
Sequence in context: A044141 A044522 A335479 * A252343 A252336 A044239
KEYWORD
nonn
AUTHOR
Paolo P. Lava, Apr 21 2016
EXTENSIONS
a(12)-a(15) from Michel Marcus, Apr 22 2016
More terms from Altug Alkan, Apr 22 2016
STATUS
approved

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Last modified July 23 23:47 EDT 2024. Contains 374575 sequences. (Running on oeis4.)