Number of nX7 0..2 arrays with values 0..2 introduced in row major order and each element equal to one or two horizontal and vertical neighbors.
A199646
Number of nX7 0..2 arrays with values 0..2 introduced in row major order and each element equal to one or two horizontal and vertical neighbors.
Terms
- a(0) =11a(1) =6628a(2) =1396083a(3) =342328663a(4) =80053957248
External references
- oeis: A199646