Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock equal.
A238176
Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock equal.
Terms
- a(0) =13447a(1) =938601a(2) =62220767a(3) =4299264833a(4) =296231759327
External references
- oeis: A238176