G.f. satisfies A(x) = x + x*A(A(A(A(x)))).
A196523
G.f. satisfies A(x) = x + x*A(A(A(A(x)))).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =28a(4) =262a(5) =2944a(6) =37666a(7) =532276a(8) =8151322a(9) =133562194a(10) =2320621222a(11) =42475263136a(12) =814932467836
External references
- oeis: A196523