2n-th derivative of sech(x)^cosh(x) at x=0.

A215677

2n-th derivative of sech(x)^cosh(x) at x=0.

Terms

    a(0) =1a(1) =-1a(2) =-1a(3) =44a(4) =-211a(5) =-9136a(6) =118799a(7) =9894884a(8) =-368001271a(9) =-3949758496

External references