1974830613domain: NAppears in sequencesNumber of (n+2)X5 0..2 arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum.at n=4A187282T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum.at n=23A187283