G.f. satisfies A(x) = 1/Product_{n>=1} (1 - x^n*A(x)^2).
A196150
G.f. satisfies A(x) = 1/Product_{n>=1} (1 - x^n*A(x)^2).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =18a(4) =92a(5) =505a(6) =2922a(7) =17541a(8) =108270a(9) =682823a(10) =4380942a(11) =28504466a(12) =187636994a(13) =1247375147a(14) =8362420498a(15) =56471709841a(16) =383790966537
External references
- oeis: A196150