G.f. A(x) satisfies: A(x - 2*x*A(x)) = x + x*A(x).
A291743
G.f. A(x) satisfies: A(x - 2*x*A(x)) = x + x*A(x).
Terms
- a(0) =1a(1) =3a(2) =21a(3) =213a(4) =2649a(5) =37683a(6) =591345a(7) =10018881a(8) =180728985a(9) =3438000843a(10) =68495707461
External references
- oeis: A291743