131428029860domain: NAppears in sequencesNumber of (n+1) X 4 0..2 arrays with rows and columns of determinants of all 2 X 2 subblocks lexicographically nondecreasing.at n=6A206218Number of (n+1)X8 0..2 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing.at n=2A206222