435063domain: NAppears in sequencesExpansion of (1-x)^(-1)/(1+2*x+x^2-2*x^3).at n=25A077928Number of 3Xn 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=16A303198