140832domain: NAppears in sequencesExpansion of (x^2)/((1-x)*(1-2*x-x^2+x^3)^2).at n=13A189427Number of n X 4 0..1 arrays with every element unequal to 0, 1, 2, 4 or 8 king-move adjacent elements, with upper left element zero.at n=10A305241