G.f.: A(x) = x/Series_Reversion(G(x)) where x*A(G(x)) = G(x) is the g.f. of A000699.
A178685
G.f.: A(x) = x/Series_Reversion(G(x)) where x*A(G(x)) = G(x) is the g.f. of A000699.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =17a(4) =143a(5) =1569a(6) =20911a(7) =324673a(8) =5720319a(9) =112365569a(10) =2430174335a(11) =57327084033
External references
- oeis: A178685