G.f. A(x) satisfies A(x) = 1 / ((1 - 4 * x) * (1 - x * A(x)^2)).
A349535
G.f. A(x) satisfies A(x) = 1 / ((1 - 4 * x) * (1 - x * A(x)^2)).
Terms
- a(0) =1a(1) =5a(2) =31a(3) =232a(4) =2007a(5) =19213a(6) =196912a(7) =2114360a(8) =23467039a(9) =266945359a(10) =3094963919a(11) =36433302124a(12) =434269638196
External references
- oeis: A349535