Number of nX4 0..7 arrays with no element equal to another within a city block distance of two, and new values 0..7 introduced in row major order.
A206501
Number of nX4 0..7 arrays with no element equal to another within a city block distance of two, and new values 0..7 introduced in row major order.
Terms
- a(0) =2a(1) =34a(2) =3130a(3) =502599a(4) =83045488a(5) =13752277898
External references
- oeis: A206501