Number of (n+1)X9 0..3 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.
A184094
Number of (n+1)X9 0..3 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) =55451a(1) =254174a(2) =22190358a(3) =2367377082a(4) =378836704735
External references
- oeis: A184094