G.f.: A(x) = exp( Sum_{n>=1} G_n(x)^n/n ) where G_n(x) = x + x*G_n(x)^n and A(x) = Sum_{n>=1} a(n)*x^n/floor(n/2)!.
A194558
G.f.: A(x) = exp( Sum_{n>=1} G_n(x)^n/n ) where G_n(x) = x + x*G_n(x)^n and A(x) = Sum_{n>=1} a(n)*x^n/floor(n/2)!.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =11a(5) =15a(6) =88a(7) =115a(8) =893a(9) =1261a(10) =12226a(11) =16111a(12) =221227a(13) =282583a(14) =4411016a(15) =6248747a(16) =113517609a(17) =148484297a(18) =3421012690a(19) =4385030203a(20) =110766993131a(21) =153110987871
External references
- oeis: A194558