G.f. A(x) satisfies: the sum of the coefficients of x^k, k=0..n, in A(x)^n equals 2^(n^2) for n>=0.
A232689
G.f. A(x) satisfies: the sum of the coefficients of x^k, k=0..n, in A(x)^n equals 2^(n^2) for n>=0.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =150a(4) =15684a(5) =6626832a(6) =11412679110
External references
- oeis: A232689