G.f.: A(x) = exp( Sum_{n>=1} 2^(n^2)*(x*A(x))^n/n ), a power series in x with integer coefficients.
A156214
G.f.: A(x) = exp( Sum_{n>=1} 2^(n^2)*(x*A(x))^n/n ), a power series in x with integer coefficients.
Terms
- a(0) =1a(1) =2a(2) =14a(3) =256a(4) =18734a(5) =6932928a(6) =11550075900
External references
- oeis: A156214