Hilltop maps: number of n X 3 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..1 n X 3 array.
A219073
Hilltop maps: number of n X 3 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..1 n X 3 array.
Terms
- a(0) =5a(1) =47a(2) =337a(3) =2469a(4) =18499a(5) =137251a(6) =1019123a(7) =7573641a(8) =56263253a(9) =417979331a(10) =3105269893a(11) =23069495037a(12) =171386678155
External references
- oeis: A219073