Hankel transform of central coefficients of (1+k*x+5x^2)^n, k arbitrary integer.
A127947
Hankel transform of central coefficients of (1+k*x+5x^2)^n, k arbitrary integer.
Terms
- a(0) =1a(1) =10a(2) =500a(3) =125000a(4) =156250000a(5) =976562500000
External references
- oeis: A127947