Largest prime factor of numerator of Bernoulli(2n) (or 1 if the numerator is 1).

A090947

Largest prime factor of numerator of Bernoulli(2n) (or 1 if the numerator is 1).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =5a(6) =691a(7) =7a(8) =3617a(9) =43867a(10) =617a(11) =593a(12) =2294797a(13) =657931a(14) =362903a(15) =1001259881a(16) =305065927a(17) =151628697551a(22) =1798482437

External references