Expansion of the Jacobi elliptic function cn(x,k) at k = 2 (even powers only).

A370543

Expansion of the Jacobi elliptic function cn(x,k) at k = 2 (even powers only).

Terms

    a(0) =1a(1) =-1a(2) =17a(3) =-433a(4) =20321a(5) =-1584289a(6) =179967473a(7) =-28151779537

External references