Hilltop maps: number of n X 3 binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..1 n X 3 array.
A218658
Hilltop maps: number of n X 3 binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..1 n X 3 array.
Terms
- a(0) =5a(1) =57a(2) =417a(3) =3249a(4) =25533a(5) =199489a(6) =1560161a(7) =12202673a(8) =95434773a(9) =746388537a(10) =5837454753a(11) =45654295713a(12) =357058903853
External references
- oeis: A218658