a(1)=1, a(2)=2, a(3)=9; a(n) = n*(n - 2)*a(n - 1)^2/(n - 1).
A112311
a(1)=1, a(2)=2, a(3)=9; a(n) = n*(n - 2)*a(n - 1)^2/(n - 1).
Terms
- a(0) =1a(1) =2a(2) =9a(3) =216a(4) =174960a(5) =146932807680
External references
- oeis: A112311
A112311
a(1)=1, a(2)=2, a(3)=9; a(n) = n*(n - 2)*a(n - 1)^2/(n - 1).