4326300domain: NAppears in sequencesTriangle read by rows, where the g.f. satisfies A(x, y) = 1 + x*A(x, y)^2 + x*y*A(x, y)^3.at n=52A104978Triangle T(n,m) read by rows: The number of m-Schroeder paths of order n with 2 diagonal steps.at n=29A1736222nd diagonal (from right) in A104978.at n=7A383450