Number of (2+2) X (n+2) 0..1 arrays with every 3 X 3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A253872
Number of (2+2) X (n+2) 0..1 arrays with every 3 X 3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =3328a(1) =31632a(2) =288000a(3) =2546432a(4) =22201600a(5) =192159408a(6) =1655991552a(7) =14230568608a(8) =122149164288
External references
- oeis: A253872