G.f. A(x) satisfies: A(x) = Sum_{n>=0} x^n * (3 + x*A(x)^n)^n.
A322726
G.f. A(x) satisfies: A(x) = Sum_{n>=0} x^n * (3 + x*A(x)^n)^n.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =36a(4) =155a(5) =825a(6) =5227a(7) =36930a(8) =277933a(9) =2181186a(10) =17716100a(11) =148600698a(12) =1286066999a(13) =11471959881a(14) =105320978028a(15) =993555579651
External references
- oeis: A322726