a(n) = Product_{k=0..n-1} (1 + binomial(n,k)*a(k)), with a(0) = 1.

A129785

a(n) = Product_{k=0..n-1} (1 + binomial(n,k)*a(k)), with a(0) = 1.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =70a(4) =18886a(5) =3534626502

External references