7907040domain: NAppears in sequencesa(n) = C(n+3,3) * C(n+5,5).at n=14A105946a(n) = ((n + 1)/2)*(n + 2)*Pochhammer(n, 5) / 4!.at n=15A293476T(n, k) = ((2*n + 1)/2)*Sum_{j, k, n} (-1)^(k + j)*(n + j)*binomial(2*n, n - j)* Stirling2(n - k + j, 1 - k + j) with T(0, 0) = 1. Triangle read by row, T(n, k) for 0 <= k <= n.at n=40A342312