944618domain: NAppears in sequencesUsed by Polya in calculating A000598.at n=20A036677T(n, k) = Sum_{j=k..n} binomial(n, j)*E2(j, j-k), where E2 are the Eulerian numbers A201637. Triangle read by rows, T(n, k) for 0 <= k <= n.at n=40A343804