Hilltop maps: number of n X n binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, vertical or antidiagonal neighbor in a random 0..1 n X n array.
A218419
Hilltop maps: number of n X n binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, vertical or antidiagonal neighbor in a random 0..1 n X n array.
Terms
- a(0) =1a(1) =13a(2) =357a(3) =41515a(4) =19003811a(5) =34328798853
External references
- oeis: A218419