Number of nX4 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors.
A183478
Number of nX4 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors.
Terms
- a(0) =7a(1) =135a(2) =587a(3) =4015a(4) =40073a(5) =270549a(6) =1942323a(7) =15984991a(8) =119888365a(9) =894632985a(10) =6977123487a(11) =53362780811a(12) =405255680609
External references
- oeis: A183478