O.g.f. satisfies: A(x) = Sum_{n>=0} n^n * x^n*A(n*x)^(2*n)/n! * exp(-n*x*A(n*x)^2).
A218673
O.g.f. satisfies: A(x) = Sum_{n>=0} n^n * x^n*A(n*x)^(2*n)/n! * exp(-n*x*A(n*x)^2).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =20a(4) =209a(5) =3173a(6) =67292a(7) =1970761a(8) =79764057a(9) =4490097388a(10) =354111363537
External references
- oeis: A218673