Number of (n+1)X(n+1) 0..2 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.
A184072
Number of (n+1)X(n+1) 0..2 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.
Terms
- a(0) =29a(1) =74a(2) =1436a(3) =44050a(4) =5727704a(5) =2187790488
External references
- oeis: A184072