791291609domain: NAppears in sequences1/128 the number of (n+2)X(n+2) binary arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace.at n=4A1858571/128 the number of (n+2)X7 binary arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace.at n=4A185862