Half the number of (n+2)X(n+2) binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum.
A187955
Half the number of (n+2)X(n+2) binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum.
Terms
- a(0) =256a(1) =8768a(2) =359488a(3) =15189800a(4) =1218772461
External references
- oeis: A187955