Number of nX3 0..2 arrays with no occurrence of three equal elements in a row horizontally or vertically, and new values 0..2 introduced in row major order.
A206645
Number of nX3 0..2 arrays with no occurrence of three equal elements in a row horizontally or vertically, and new values 0..2 introduced in row major order.
Terms
- a(0) =4a(1) =96a(2) =1625a(3) =30145a(4) =545520a(5) =9937823a(6) =180716227a(7) =3287842038a(8) =59809329737
External references
- oeis: A206645