Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..3 nX7 array.
A218809
Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..3 nX7 array.
Terms
- a(0) =113a(1) =15871a(2) =2030789a(3) =259935681a(4) =33267198605
External references
- oeis: A218809