Half the number of (n+2)X7 binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum.
A187960
Half the number of (n+2)X7 binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum.
Terms
- a(0) =240064a(1) =2092928a(2) =16890700a(3) =124421880a(4) =1218772461a(5) =11568061339a(6) =98476432408a(7) =907622916436
External references
- oeis: A187960