Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..4 nX7 array.
A218287
Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..4 nX7 array.
Terms
- a(0) =121a(1) =16289a(2) =2095233a(3) =268366049a(4) =34355128651
External references
- oeis: A218287