The 2n-th derivative of exp(1 - 1/(1 - x^2)) evaluated at 0.

A131815

The 2n-th derivative of exp(1 - 1/(1 - x^2)) evaluated at 0.

Terms

    a(0) =1a(1) =-2a(2) =-12a(3) =-120a(4) =1680a(5) =574560a(6) =100457280a(7) =18871332480

External references