a(0) = 4; for n > 0, a(n) = a(n-1)^3 - 3*a(n-1)^2 + 3.

A002813

a(0) = 4; for n > 0, a(n) = a(n-1)^3 - 3*a(n-1)^2 + 3.

Terms

    a(0) =4a(1) =19a(2) =5779a(3) =192900153619

External references