Number of (n+2)X(1+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 7.
A251910
Number of (n+2)X(1+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 7.
Terms
- a(0) =49436a(1) =950384a(2) =18245824a(3) =351040004a(4) =6755376172a(5) =130017259448
External references
- oeis: A251910