G.f. satisfies A(x) = (1 + x)^2 + x*A(x)^4.
A366698
G.f. satisfies A(x) = (1 + x)^2 + x*A(x)^4.
Terms
- a(0) =1a(1) =3a(2) =13a(3) =106a(4) =1000a(5) =10315a(6) =112732a(7) =1282262a(8) =15021212a(9) =179994093a(10) =2195807684a(11) =27179964798a(12) =340514877488
External references
- oeis: A366698