Number of n X 4 0..5 arrays with no element equal to another within a city block distance of two, and new values 0..5 introduced in row major order.
A206392
Number of n X 4 0..5 arrays with no element equal to another within a city block distance of two, and new values 0..5 introduced in row major order.
Terms
- a(0) =2a(1) =25a(2) =206a(3) =1931a(4) =16784a(5) =151630a(6) =1343560a(7) =12046648a(8) =107401612a(9) =960610876a(10) =8576723918a(11) =76644197120a(12) =684569775162
External references
- oeis: A206392