8546141676domain: NAppears in sequences1/128 the number of (n+2)X6 binary arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace.at n=6A1858611/128 the number of (n+2)X9 binary arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace.at n=3A185864