Number of (n+2) X (2+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3 X 3 subblock summing to 3.
A251952
Number of (n+2) X (2+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3 X 3 subblock summing to 3.
Terms
- a(0) =15246a(1) =188296a(2) =2723490a(3) =41025310a(4) =641763520a(5) =10250030572a(6) =165378271354
External references
- oeis: A251952