Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock equal.
A236906
Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock equal.
Terms
- a(0) =4448a(1) =44836a(2) =451396a(3) =5345722a(4) =62508118a(5) =789404948a(6) =9889339846a(7) =129170196446
External references
- oeis: A236906