Number of n X n binary arrays with all ones connected only either three adjacent vertically or three adjacent horizontally.
A145757
Number of n X n binary arrays with all ones connected only either three adjacent vertically or three adjacent horizontally.
Terms
- a(0) =1a(1) =1a(2) =9a(3) =45a(4) =476a(5) =6933a(6) =199238a(7) =8764691a(8) =657200985a(9) =80295518797
External references
- oeis: A145757