Generalized ordered Bell numbers Bo(4,n).

A094417

Generalized ordered Bell numbers Bo(4,n).

Terms

    a(0) =1a(1) =4a(2) =36a(3) =484a(4) =8676a(5) =194404a(6) =5227236a(7) =163978084a(8) =5878837476a(9) =237109864804

External references