22810912domain: NAppears in sequencesT(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no element plus any horizontal or vertical neighbor equal to n-1.at n=39A265663Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any horizontal or vertical neighbor equal to 4-1.at n=5A265665