G.f. satisfies: A(x) = Product_{n>=0} (1 + x^(n+1)*A(x)^n)^2/(1 - x^(n+1)*A(x)^n)^2.
A192622
G.f. satisfies: A(x) = Product_{n>=0} (1 + x^(n+1)*A(x)^n)^2/(1 - x^(n+1)*A(x)^n)^2.
Terms
- a(0) =1a(1) =4a(2) =12a(3) =48a(4) =220a(5) =1080a(6) =5600a(7) =30112a(8) =166300a(9) =937620a(10) =5374200a(11) =31221488a(12) =183430656a(13) =1087975256a(14) =6505878592a(15) =39179738400a(16) =237412139260
External references
- oeis: A192622