S2(j,2j+3) where S2(n,k) is a 2-associated Stirling number of the second kind.

A000504

S2(j,2j+3) where S2(n,k) is a 2-associated Stirling number of the second kind.

Terms

    a(0) =1a(1) =56a(2) =1918a(3) =56980a(4) =1636635a(5) =47507460a(6) =1422280860a(7) =44346982680

External references