Column 1 of triangular matrix A102320, which that satisfies: T(n,k) = [T^2](n-1,k) when n>k>=0, with T(n,n) = (2*n+1).

A102322

Column 1 of triangular matrix A102320, which that satisfies: T(n,k) = [T^2](n-1,k) when n>k>=0, with T(n,n) = (2*n+1).

Terms

    a(0) =0a(1) =3a(2) =9a(3) =72a(4) =945a(5) =17568a(6) =427770a(7) =12979080a(8) =473981445a(9) =20308813128

External references