Numerator of Bernoulli(n, 1/12).

Terms

a(0) =1a(1) =-5a(2) =13a(3) =55a(4) =-2851a(5) =-3245a(6) =427363a(7) =473935a(8) =-61949131a(9) =-123108821a(10) =44665749215a(11) =49265523175