Half the number of (n+1)X7 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3.
A184228
Half the number of (n+1)X7 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3.
Terms
- a(0) =6966a(1) =541936a(2) =22904858a(3) =1292899174a(4) =64280495958
External references
- oeis: A184228