G.f. satisfies: A(x) = Product_{n>=1} (1 + x^n*A(x)^2)/(1 - x^n*A(x)^2).
A192621
G.f. satisfies: A(x) = Product_{n>=1} (1 + x^n*A(x)^2)/(1 - x^n*A(x)^2).
Terms
- a(0) =1a(1) =2a(2) =12a(3) =88a(4) =726a(5) =6456a(6) =60392a(7) =585792a(8) =5838764a(9) =59440250a(10) =615431464a(11) =6460681656a(12) =68607630680a(13) =735682014648
External references
- oeis: A192621