1292583020domain: NAppears in sequencesNumber of (n+2)X4 0..3 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum.at n=1A187675T(n,k) = Number of (n+2) X (k+2) 0..3 arrays with no 2 X 2 subblock sum equal to any diagonal or antidiagonal neighbor 2 X 2 subblock sum.at n=4A187676