Half the number of n X 5 binary arrays with the number of 1-1 horizontal, vertical, diagonal and antidiagonal adjacencies equal to the number of 0-0 adjacencies.
A183286
Half the number of n X 5 binary arrays with the number of 1-1 horizontal, vertical, diagonal and antidiagonal adjacencies equal to the number of 0-0 adjacencies.
Terms
- a(0) =3a(1) =60a(2) =116a(3) =28440a(4) =150979a(5) =20021342a(6) =174883800a(7) =15784256016a(8) =190371233229
External references
- oeis: A183286