a(n) = Sum_{k=0..n} p(k)^n, where p(k) is the partition function A000041.

A259437

a(n) = Sum_{k=0..n} p(k)^n, where p(k) is the partition function A000041.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =37a(4) =724a(5) =20209a(6) =1905630a(7) =191250531a(8) =57659285287

External references