G.f. satisfies: A(x) = Product_{n>=0} (1 + x^(n+1)*A(x)^(2*n))/(1 - x^(n+1)*A(x)^(2*n)).
A192623
G.f. satisfies: A(x) = Product_{n>=0} (1 + x^(n+1)*A(x)^(2*n))/(1 - x^(n+1)*A(x)^(2*n)).
Terms
- a(0) =1a(1) =2a(2) =4a(3) =16a(4) =70a(5) =336a(6) =1720a(7) =9152a(8) =50140a(9) =280882a(10) =1601496a(11) =9263424a(12) =54224312a(13) =320611152a(14) =1912003536a(15) =11487287872a(16) =69463274022a(17) =422440713680
External references
- oeis: A192623