a(n) = B2(n) * C(n) where B2(n) are generalized Bernoulli numbers and C(n) the Clausen numbers.

A225480

a(n) = B2(n) * C(n) where B2(n) are generalized Bernoulli numbers and C(n) the Clausen numbers.

Terms

    a(0) =1a(1) =0a(2) =-2a(3) =0a(4) =14a(5) =0a(6) =-62a(7) =0a(8) =254a(9) =0a(10) =-5110a(11) =0a(12) =2828954a(13) =0a(14) =-114674a(15) =0a(16) =237036478a(17) =0a(18) =-11499383114a(19) =0a(20) =183092554714a(21) =0a(23) =0a(25) =0a(27) =0a(29) =0a(31) =0a(33) =0

External references