Number of 3 X n 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once.
A269203
Number of 3 X n 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once.
Terms
- a(0) =64a(1) =1740a(2) =25572a(3) =400428a(4) =5877228a(5) =84310620a(6) =1184381844a(7) =16385570076a(8) =223935582828
External references
- oeis: A269203