Number of n X 5 binary arrays with top left element equal to 1 and no two ones adjacent horizontally or antidiagonally.
A228751
Number of n X 5 binary arrays with top left element equal to 1 and no two ones adjacent horizontally or antidiagonally.
Terms
- a(0) =5a(1) =50a(2) =482a(3) =4599a(4) =43862a(5) =418370a(6) =3990739a(7) =38067290a(8) =363121586a(9) =3463797759a(10) =33040991486a(11) =315176359538
External references
- oeis: A228751