Hankel transform of central coefficients of (1+k*x-3x^2)^n, k arbitrary integer.

A127946

Hankel transform of central coefficients of (1+k*x-3x^2)^n, k arbitrary integer.

Terms

    a(0) =1a(1) =-6a(2) =-108a(3) =5832a(4) =944784a(5) =-459165024a(6) =-669462604992

External references