G.f. A(x) satisfies A(x) = 1/sqrt( (1 - 2*x*A(x)^2) * (1 - 2*x*A(x)) ).
A379330
G.f. A(x) satisfies A(x) = 1/sqrt( (1 - 2*x*A(x)^2) * (1 - 2*x*A(x)) ).
Terms
- a(0) =1a(1) =2a(2) =10a(3) =66a(4) =500a(5) =4112a(6) =35702a(7) =322114a(8) =2990450a(9) =28382486a(10) =274151074a(11) =2686200302a(12) =26634199776a(13) =266738477892
External references
- oeis: A379330