G.f. A(x) satisfies A(x) = ( 1 + x*A(x)^3/(1 + x*A(x)^2) )^2.
A378954
G.f. A(x) satisfies A(x) = ( 1 + x*A(x)^3/(1 + x*A(x)^2) )^2.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =82a(4) =705a(5) =6584a(6) =64902a(7) =664608a(8) =7001006a(9) =75378082a(10) =825810304a(11) =9176278104a(12) =103171720299
External references
- oeis: A378954