Hilltop maps: number of nX3 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..1 nX3 array.
A218349
Hilltop maps: number of nX3 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..1 nX3 array.
Terms
- a(0) =5a(1) =41a(2) =291a(3) =2069a(4) =14811a(5) =105913a(6) =757305a(7) =5415209a(8) =38722037a(9) =276885777a(10) =1979899795a(11) =14157473937a(12) =101234450215a(13) =723887182917
External references
- oeis: A218349