Number of n X n binary arrays with all ones connected only in a 2X2 elbow 1,1 1,2 2,1 in any orientation.
A145935
Number of n X n binary arrays with all ones connected only in a 2X2 elbow 1,1 1,2 2,1 in any orientation.
Terms
- a(0) =1a(1) =5a(2) =19a(3) =161a(4) =4227a(5) =156459a(6) =12465353a(7) =2072728127a(8) =654619864141
External references
- oeis: A145935