G.f. A(x) satisfies A(x) = 1/(1 - x)^3 + x*A(x)^3/(1 - x)^2.
A366183
G.f. A(x) satisfies A(x) = 1/(1 - x)^3 + x*A(x)^3/(1 - x)^2.
Terms
- a(0) =1a(1) =4a(2) =20a(3) =145a(4) =1250a(5) =11746a(6) =116641a(7) =1204039a(8) =12790067a(9) =138895021a(10) =1535005454a(11) =17207743738a(12) =195197256289
External references
- oeis: A366183