G.f. A(x) satisfies: A(x) = (1 - x * A(-x)) / (1 - 2 * x * A(x)).
A349011
G.f. A(x) satisfies: A(x) = (1 - x * A(-x)) / (1 - 2 * x * A(x)).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =17a(4) =105a(5) =433a(6) =2925a(7) =13185a(8) =93425a(9) =443009a(10) =3233205a(11) =15840209a(12) =117950745a(13) =591187953a(14) =4466545245a(15) =22766535297a(16) =173906505825a(17) =897941153665
External references
- oeis: A349011