Number of (n+1)X(1+1) 0..3 arrays with the maximum plus the upper median minus the minimum of every 2X2 subblock equal.
A236973
Number of (n+1)X(1+1) 0..3 arrays with the maximum plus the upper median minus the minimum of every 2X2 subblock equal.
Terms
- a(0) =256a(1) =1238a(2) =6024a(3) =31008a(4) =160764a(5) =849024a(6) =4508480a(7) =24165576a(8) =130044760a(9) =703680344a(10) =3818629248a(11) =20793569096a(12) =113460899768a(13) =620474785528
External references
- oeis: A236973