76258263901domain: NAppears in sequencesNumber of (n+1) X 3 0..2 arrays with every 2 X 2 subblock having one, two or three distinct clockwise edge differences.at n=6A210384Number of (n+1)X8 0..2 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences.at n=1A210389