Number of nX7 0..3 arrays with values 0..3 introduced in row major order and each element equal to one or two horizontal and vertical neighbors.
A199148
Number of nX7 0..3 arrays with values 0..3 introduced in row major order and each element equal to one or two horizontal and vertical neighbors.
Terms
- a(0) =11a(1) =16866a(2) =14511531a(3) =15958823113
External references
- oeis: A199148