63009576domain: NAppears in sequencesNumber of (n+1) X 2 0..2 arrays with no 2 X 2 subblock trace equal to any horizontal or vertical neighbor 2 X 2 subblock trace.at n=7A186133Number of (n+1)X9 0..2 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace.at n=0A186140