Self-convolution of A014062, where A014062(n) = C(n^2, n).

A137610

Self-convolution of A014062, where A014062(n) = C(n^2, n).

Terms

    a(0) =1a(1) =2a(2) =13a(3) =180a(4) =3844a(5) =110908a(6) =4030740a(7) =176640072a(8) =9059743648a(9) =532179428700

External references