212231domain: NAppears in sequencesNumber of nX6 0..1 arrays with every element unequal to 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=6A305221Number of nX7 0..1 arrays with every element unequal to 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=5A305222