Number of nX4 0..3 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..3 introduced in row major order.
A241116
Number of nX4 0..3 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..3 introduced in row major order.
Terms
- a(0) =15a(1) =2614a(2) =587555a(3) =134229632a(4) =30679522712
External references
- oeis: A241116