53518920690domain: NAppears in sequencesNumber of (n+1)X5 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.at n=5A206050Number of (n+1)X7 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.at n=3A206052