Half the number of (n+1)X4 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3.
A184225
Half the number of (n+1)X4 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3.
Terms
- a(0) =180a(1) =2318a(2) =20958a(3) =224156a(4) =2227254a(5) =22904858a(6) =231988508a(7) =2366228756a(8) =24059229300a(9) =244980260166
External references
- oeis: A184225