a(n) = a(n-1)*a(n-2) + (n-2); a(1) = 1, a(2) = 2.
A091339
a(n) = a(n-1)*a(n-2) + (n-2); a(1) = 1, a(2) = 2.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =8a(4) =27a(5) =220a(6) =5945a(7) =1307906a(8) =7775501177
External references
- oeis: A091339
A091339
a(n) = a(n-1)*a(n-2) + (n-2); a(1) = 1, a(2) = 2.