Number of (n+2)X5 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.
A205259
Number of (n+2)X5 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) =13728a(1) =379283a(2) =10529929a(3) =291785631a(4) =8084022743a(5) =224000986714
External references
- oeis: A205259