Denominators of coefficients of expansion of sinh(x)/sin(x) (even powers only).

A069854

Denominators of coefficients of expansion of sinh(x)/sin(x) (even powers only).

Terms

    a(0) =1a(1) =3a(2) =18a(3) =1890a(4) =22680a(5) =1247400a(6) =157172400a(7) =6129723600a(8) =81729648000

External references