Half the number of (n+2)X5 binary arrays with each 3X3 subblock having a sum in 2..7.
A186790
Half the number of (n+2)X5 binary arrays with each 3X3 subblock having a sum in 2..7.
Terms
- a(0) =14825a(1) =440505a(2) =13066921a(3) =387763760a(4) =11506373601a(5) =341441530745
External references
- oeis: A186790