Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the upper median plus the lower median minus the minimum of every 2X2 subblock equal.
A236720
Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the upper median plus the lower median minus the minimum of every 2X2 subblock equal.
Terms
- a(0) =81a(1) =639a(2) =6879a(3) =127113a(4) =3413516a(5) =173486981a(6) =12274465993
External references
- oeis: A236720