2554890

Appears in sequences

• Triangle T, read by rows, that satisfies: T(n,k) = [T^3](n-1,k) for n>k+1>=1, with T(n,n) = 1 and T(n+1,n) = n+1 for n>=0, where T^3 is the matrix cube of T.at n=46A109282
• Column 1 of triangle A109282.at n=8A109284