G.f. A(x) satisfies: A(x) = 1 + x * A(x) * (A(x) + 3*x*A'(x)) / (A(x) + x*A'(x)).
A302699
G.f. A(x) satisfies: A(x) = 1 + x * A(x) * (A(x) + 3*x*A'(x)) / (A(x) + x*A'(x)).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =13a(4) =71a(5) =469a(6) =3711a(7) =35181a(8) =398791a(9) =5352149a(10) =83650687a(11) =1494274301a(12) =29988083447a(13) =666634964197
External references
- oeis: A302699