G.f. A(x) satisfies A(x) = 1/( 1 - x*A(x)*A(x*A(x)^3) ).
A384680
G.f. A(x) satisfies A(x) = 1/( 1 - x*A(x)*A(x*A(x)^3) ).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =100a(5) =805a(6) =7442a(7) =76750a(8) =866818a(9) =10586499a(10) =138549918a(11) =1929878820a(12) =28459172110a(13) =442421488758
External references
- oeis: A384680