Number of nX5 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.
A269049
Number of nX5 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =144a(1) =1068a(2) =13140a(3) =149358a(4) =1643376a(5) =17696520a(6) =187575858a(7) =1964080920a(8) =20365312416a(9) =209472681102
External references
- oeis: A269049