Hilltop maps: number of n X n binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..2 n X n array.
A218198
Hilltop maps: number of n X n binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..2 n X n array.
Terms
- a(0) =1a(1) =15a(2) =483a(3) =61013a(4) =30954777a(5) =62898202889
External references
- oeis: A218198