Half the number of n X 9 binary arrays with a path of adjacent 1's and a path of adjacent 0's from top row to bottom row.
A069409
Half the number of n X 9 binary arrays with a path of adjacent 1's and a path of adjacent 0's from top row to bottom row.
Terms
- a(0) =255a(1) =111645a(2) =40306317a(3) =12817737731
External references
- oeis: A069409