Hilltop maps: number of 3Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..2 3Xn array.
A219064
Hilltop maps: number of 3Xn binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..2 3Xn array.
Terms
- a(0) =1a(1) =59a(2) =503a(3) =4049a(4) =32313a(5) =258353a(6) =2066359a(7) =16527691a(8) =132195391a(9) =1057349609a(10) =8457086257a(11) =67643015889a(12) =541034769831
External references
- oeis: A219064