Numerator of Bernoulli(n, 3/10).

Terms

a(0) =1a(1) =-1a(2) =-13a(3) =21a(4) =323a(5) =-1141a(6) =-157531a(7) =123361a(8) =3107843a(9) =-22584681a(10) =-7737133583a(11) =6298701101