107088domain: NAppears in sequencesG.f. A(x) satisfies: A(x) = (1 + x * A(x)^3) / (1 - x).at n=7A346626Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,0) = 0^n and T(n,k) = k * Sum_{r=0..n} binomial(n,r) * binomial(n+2*r+k,n)/(n+2*r+k) for k > 0.at n=43A378236