a(n) = 2 a(n-1)^2 + 1 for n >=2 , where a(0) = 1, a(1) = 1.
A329470
a(n) = 2 a(n-1)^2 + 1 for n >=2 , where a(0) = 1, a(1) = 1.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =19a(4) =723a(5) =1045459
External references
- oeis: A329470
A329470
a(n) = 2 a(n-1)^2 + 1 for n >=2 , where a(0) = 1, a(1) = 1.