G.f.: A(x) satisfies: coefficient of x^n in A(x)^(n+1)/(n+1) = 2^(n*(n-1)/2).
A136653
G.f.: A(x) satisfies: coefficient of x^n in A(x)^(n+1)/(n+1) = 2^(n*(n-1)/2).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =39a(5) =748a(6) =27162a(7) =1880872a(8) =252273611a(9) =66358216668
External references
- oeis: A136653