Number of nX3 0..3 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..3 introduced in row major order.
A204680
Number of nX3 0..3 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..3 introduced in row major order.
Terms
- a(0) =4a(1) =159a(2) =6451a(3) =287379a(4) =12711292a(5) =563046972a(6) =24932875448
External references
- oeis: A204680