a(n) = 2 * a(n-2) * a(n-1) with a(1)=1 and a(2)=3.
A174666
a(n) = 2 * a(n-2) * a(n-1) with a(1)=1 and a(2)=3.
Terms
- a(0) =1a(1) =3a(2) =6a(3) =36a(4) =432a(5) =31104a(6) =26873856
External references
- oeis: A174666
A174666
a(n) = 2 * a(n-2) * a(n-1) with a(1)=1 and a(2)=3.