54618168204domain: NAppears in sequencesNumber of (n+1)X4 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.at n=5A206080Number of (n+1)X7 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.at n=2A206083