Number of ways to start with set {1,2,...,n} and then repeat n times: partition each set into subsets.

A261280

Number of ways to start with set {1,2,...,n} and then repeat n times: partition each set into subsets.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =22a(4) =315a(5) =7556a(6) =274778a(7) =14140722a(8) =979687005a(9) =87998832685

External references