G.f. satisfies: 2*A(x) = 1 + x + A(x*A(x)^2).
A242004
G.f. satisfies: 2*A(x) = 1 + x + A(x*A(x)^2).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =13a(4) =136a(5) =1901a(6) =32672a(7) =660213a(8) =15261866a(9) =396260409a(10) =11404802292a(11) =360239943502
External references
- oeis: A242004