Half the number of (n+1)X9 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3.
A184230
Half the number of (n+1)X9 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3.
Terms
- a(0) =78597a(1) =20204829a(2) =2366228756a(3) =402560143085
External references
- oeis: A184230