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

A259373

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

Terms

    a(0) =1a(1) =1a(2) =4a(3) =108a(4) =67500a(5) =1134472500

External references