a(n) = 4th Euler polynomial evaluated at 2^n.

A020524

a(n) = 4th Euler polynomial evaluated at 2^n.

Terms

    a(0) =0a(1) =2a(2) =132a(3) =3080a(4) =57360a(5) =983072a(6) =16252992a(7) =264241280a(8) =4261413120a(9) =68451041792

External references