443624694633domain: NAppears in sequencesG.f. A(x) satisfies A(x) = 1/( 1 - x*A(2*x*A(x)) ).at n=9A382450Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A382450.at n=64A384777