1939630

Appears in sequences

• Triangle read by rows, T(n, k) = Sum_{j=0..n} C(n-j, n-k)*E2(n, j), where E2 are the second-order Eulerian numbers A201637, for n >= 0 and 0 <= k <= n.at n=40A112493
• Fifth column of triangle A112493 used for e.g.f.s of Stirling2 diagonals.at n=4A112497
• Triangle read by rows: T(n,k) is the number of partitions of an n-set having k blocks of size > 1 (0<=k<=floor(n/2)).at n=46A124324