G.f.: Sum_{n>=0} a(n)*x^n/2^(n(n-1)/2) = exp( Sum_{n>=1} A(x/2^n)^n*x^n/n ).
A159592
G.f.: Sum_{n>=0} a(n)*x^n/2^(n(n-1)/2) = exp( Sum_{n>=1} A(x/2^n)^n*x^n/n ).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =17a(4) =177a(5) =3491a(6) =133261a(7) =9917307a(8) =1443008813a(9) =411772442315
External references
- oeis: A159592