Let h(m) denote the sequence whose n-th term is Sum__{k=0..n} (k+1)^m*T(n,k)^2, where T(n,k) is the Catalan triangle A039598. This is h(5).

A228331

Let h(m) denote the sequence whose n-th term is Sum__{k=0..n} (k+1)^m*T(n,k)^2, where T(n,k) is the Catalan triangle A039598. This is h(5).

Terms

    a(0) =1a(1) =36a(2) =780a(3) =16240a(4) =321300a(5) =6131664a(6) =114017904a(7) =2079380160a(8) =37356642180a(9) =663144710800

External references