a(0) = 0; for n > 0, a(n) = (a(n-1) + 1)^2.
A004019
a(0) = 0; for n > 0, a(n) = (a(n-1) + 1)^2.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =25a(4) =676a(5) =458329a(6) =210066388900
External references
- oeis: A004019
A004019
a(0) = 0; for n > 0, a(n) = (a(n-1) + 1)^2.