17324310663domain: NAppears in sequencesNumber of nX4 0..2 arrays x(i,j) with each element horizontally or vertically next to at least one element with value 2-x(i,j).at n=6A229843Number of nX7 0..2 arrays x(i,j) with each element horizontally or vertically next to at least one element with value 2-x(i,j).at n=3A229846