a(n) = a(n-1)^2 + (a(n-2) + 1)*(a(n-1) - a(n-2)^2).
A000472
a(n) = a(n-1)^2 + (a(n-2) + 1)*(a(n-1) - a(n-2)^2).
Terms
- a(0) =2a(1) =5a(2) =28a(3) =802a(4) =643726a(5) =414383582242
External references
- oeis: A000472
A000472
a(n) = a(n-1)^2 + (a(n-2) + 1)*(a(n-1) - a(n-2)^2).