G.f. A(x) satisfies A(x) = 1/(1 - x * A(x) * A(x*A(x)))^2.
A381593
G.f. A(x) satisfies A(x) = 1/(1 - x * A(x) * A(x*A(x)))^2.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =88a(4) =869a(5) =9876a(6) =124473a(7) =1701630a(8) =24870695a(9) =384795184a(10) =6257294780a(11) =106377162620
External references
- oeis: A381593