72773domain: NAppears in sequencesNumbers k such that (67*10^(k-1) + 23)/9 is a depression prime.at n=9A082712Number of nX3 0..1 arrays with every element unequal to 0, 1, 2, 4, 7 or 8 king-move adjacent elements, with upper left element zero.at n=10A316540