Number of nX4 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.
A233069
Number of nX4 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.
Terms
- a(0) =14a(1) =289a(2) =6854a(3) =164495a(4) =3957778a(5) =95264272a(6) =2293174089a(7) =55201144642
External references
- oeis: A233069