Number of 4 X n binary arrays with top left value 1 and no two ones adjacent horizontally, diagonally or antidiagonally.
A228663
Number of 4 X n binary arrays with top left value 1 and no two ones adjacent horizontally, diagonally or antidiagonally.
Terms
- a(0) =8a(1) =12a(2) =140a(3) =416a(4) =2844a(5) =11148a(6) =62368a(7) =275708a(8) =1420076a(9) =6614240a(10) =32897116a(11) =156718796a(12) =767930400a(13) =3694025404a(14) =17985757548a(15) =86879470432a(16) =421850136604
External references
- oeis: A228663