Number of nX4 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..2 introduced in row major order.
A204974
Number of nX4 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..2 introduced in row major order.
Terms
- a(0) =11a(1) =726a(2) =16813a(3) =451468a(4) =11815256a(5) =311275169a(6) =8202482914a(7) =216132492162
External references
- oeis: A204974