Diagonal of (1 - 9 x y)/((1 - 3 y - 2 x + 3 y^2 + 9 x^2 y) * (1 - u - z) * (1 - v - w)).
A268549
Diagonal of (1 - 9 x y)/((1 - 3 y - 2 x + 3 y^2 + 9 x^2 y) * (1 - u - z) * (1 - v - w)).
Terms
- a(0) =1a(1) =12a(2) =648a(3) =50400a(4) =4630500a(5) =468087984a(6) =50345463168
External references
- oeis: A268549