941863domain: NAppears in sequencesE.g.f. A(x) satisfies: A( x*exp(-x*A(x)) ) = exp(x*A(x)).at n=6A140049Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A140049.at n=34A379168