400233701367domain: NAppears in sequencesNumber of nX5 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j).at n=6A230181Number of 7Xn 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j).at n=4A230190