1738864domain: NAppears in sequencesT(n,k) = Number of n X k arrays containing k copies of 0..n-1 with no element plus any horizontal or antidiagonal neighbor equal to n-1.at n=31A265856Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any horizontal or antidiagonal neighbor equal to 4-1.at n=4A265858