833700866796domain: NAppears in sequencesNumber of (n+1) X 3 0..5 arrays with every 2 X 2 subblock having equal diagonal elements or equal antidiagonal elements.at n=6A203928Number of (n+1)X8 0..5 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=1A203933