E.g.f. A(x) satisfies A(x) = exp( x * A(x) / (1-x)^3 ) / (1-x).
A389866
E.g.f. A(x) satisfies A(x) = exp( x * A(x) / (1-x)^3 ) / (1-x).
Terms
- a(0) =1a(1) =2a(2) =15a(3) =193a(4) =3441a(5) =79261a(6) =2253493a(7) =76467371a(8) =3020431473a(9) =136258479577
External references
- oeis: A389866