Hilltop maps: number of 2Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..1 2Xn array.
A219079
Hilltop maps: number of 2Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..1 2Xn array.
Terms
- a(0) =1a(1) =11a(2) =47a(3) =165a(4) =625a(5) =2435a(6) =9367a(7) =35901a(8) =137865a(9) =529675a(10) =2034399a(11) =7813333a(12) =30009313a(13) =115260115a(14) =442689383a(15) =1700273453a(16) =6530386425a(17) =25081819099a(18) =96333894191a(19) =369997847365
External references
- oeis: A219079