Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..3 nX7 array.
A218637
Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..3 nX7 array.
Terms
- a(0) =113a(1) =16257a(2) =2096129a(3) =268375113a(4) =34351030657
External references
- oeis: A218637