Number of nX4 0..2 arrays with each element equal to either the sum mod 3 of its horizontal and vertical neighbors or the sum mod 3 of its diagonal and antidiagonal neighbors.
A183521
Number of nX4 0..2 arrays with each element equal to either the sum mod 3 of its horizontal and vertical neighbors or the sum mod 3 of its diagonal and antidiagonal neighbors.
Terms
- a(0) =7a(1) =95a(2) =543a(3) =3507a(4) =27609a(5) =201833a(6) =1521573a(7) =11678037a(8) =89238523a(9) =683029435a(10) =5235031077a(11) =40141122349a(12) =307807564417
External references
- oeis: A183521