Numerator of Bernoulli(2n,1/3).

A033470

Numerator of Bernoulli(2n,1/3).

Terms

    a(0) =1a(1) =-1a(2) =13a(3) =-121a(4) =1093a(5) =-49205a(6) =61203943a(7) =-5580127a(8) =25949996501

External references