cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A272184 Numbers n such that Bernoulli number B_{n} has denominator 282.

Original entry on oeis.org

46, 322, 782, 874, 1058, 1702, 2162, 2254, 2714, 2806, 3266, 3634, 4646, 4738, 4922, 5014, 6118, 6302, 6394, 6854, 7222, 7406, 7682, 8326, 8878, 9062, 9154, 9706, 10442, 10534, 11822, 11914, 12098, 12374, 12466, 13018, 13294, 14122, 14306, 14398, 14582
Offset: 1

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Author

Paolo P. Lava, Apr 22 2016

Keywords

Comments

282 = 2 * 3 * 47.
All terms are multiples of a(1) = 46.
For these numbers numerator(B_{n}) mod denominator(B_{n}) = 41.

Examples

			Bernoulli B_{46} is 596451111593912163277961/282, hence 46 is in the sequence.
		

Crossrefs

Programs

  • 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(10^6,282);
  • Mathematica
    Select[46 Range@ 320, Denominator@ BernoulliB@ # == 282 &] (* Michael De Vlieger, Apr 29 2016 *)
  • PARI
    isok(n) = denominator(bernfrac(n)) == 282; \\ Michel Marcus, Apr 22 2016

Extensions

a(13)-a(28) from Michel Marcus, Apr 22 2016
a(29)-a(41) from Altug Alkan, Apr 22 2016