381716567508domain: NAppears in sequencesNumber of (n+2)X4 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum.at n=4A187598T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum.at n=16A187600