a(0) = 1, a(n) = 5 + Product_{i=0..n-1} a(i) for n > 0.

A001543

a(0) = 1, a(n) = 5 + Product_{i=0..n-1} a(i) for n > 0.

Terms

    a(0) =1a(1) =6a(2) =11a(3) =71a(4) =4691a(5) =21982031

External references