Number of (n+2)X6 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..1 introduced in row major order.
A205260
Number of (n+2)X6 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..1 introduced in row major order.
Terms
- a(0) =103876a(1) =5487807a(2) =291785631a(3) =15472955417a(4) =820342090696
External references
- oeis: A205260