Number of (n+2)X(4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 3.
A252444
Number of (n+2)X(4+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 3.
Terms
- a(0) =48658a(1) =1149386a(2) =30491181a(3) =732217984a(4) =17918363933a(5) =443610072768
External references
- oeis: A252444