G.f. satisfies A(x) = (1 + x / (1 - x*A(x))^4)^4.
A365124
G.f. satisfies A(x) = (1 + x / (1 - x*A(x))^4)^4.
Terms
- a(0) =1a(1) =4a(2) =22a(3) =156a(4) =1209a(5) =10020a(6) =86724a(7) =775044a(8) =7096652a(9) =66232980a(10) =627749066a(11) =6025752664a(12) =58459917618a(13) =572315274540
External references
- oeis: A365124