Hilltop maps: number of nX4 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 nX4 array.
A218588
Hilltop maps: number of nX4 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 nX4 array.
Terms
- a(0) =13a(1) =225a(2) =3565a(3) =56629a(4) =900213a(5) =14309253a(6) =227451273a(7) =3615431533a(8) =57468767413a(9) =913489632033
External references
- oeis: A218588