E.g.f. A(x) satisfies A(x) = exp(x * A(x)^2 * (1 - x*A(x))^2) / (1 - x*A(x)).
A380717
E.g.f. A(x) satisfies A(x) = exp(x * A(x)^2 * (1 - x*A(x))^2) / (1 - x*A(x)).
Terms
- a(0) =1a(1) =2a(2) =13a(3) =151a(4) =2561a(5) =57401a(6) =1602985a(7) =53659453a(8) =2095244289a(9) =93523526065
External references
- oeis: A380717