a(n) = numerator of Bernoulli(2*n)/(2*n + 1)!. Bisection of A120082.

A141590

a(n) = numerator of Bernoulli(2*n)/(2*n + 1)!. Bisection of A120082.

Terms

    a(0) =1a(1) =1a(2) =-1a(3) =1a(4) =-1a(5) =1a(6) =-691a(7) =1a(8) =-3617a(9) =43867a(10) =-174611a(11) =77683a(12) =-236364091a(13) =657931a(14) =-3392780147a(17) =151628697551

External references