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..2 nX3 array.
A218201
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..2 nX3 array.
Terms
- a(0) =7a(1) =59a(2) =483a(3) =3841a(4) =30599a(5) =243953a(6) =1945103a(7) =15508803a(8) =123654745a(9) =985923281a(10) =7860958915a(11) =62676962321a(12) =499735676361
External references
- oeis: A218201