G.f.: Sum_{n>=0} a(n)*x^n/3^(n(n-1)/2) = exp( Sum_{n>=1} A(x/3^n)^n*x^n/n ).
A176827
G.f.: Sum_{n>=0} a(n)*x^n/3^(n(n-1)/2) = exp( Sum_{n>=1} A(x/3^n)^n*x^n/n ).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =43a(4) =1288a(5) =111874a(6) =28513474a(7) =21447796411
External references
- oeis: A176827