Number of 3 X n semireduced Latin rectangles, that is, having exactly n fixed points in the first two rows.
A176901
Number of 3 X n semireduced Latin rectangles, that is, having exactly n fixed points in the first two rows.
Terms
- a(0) =4a(1) =72a(2) =1584a(3) =70720a(4) =3948480a(5) =284570496a(6) =25574768128
External references
- oeis: A176901