A218231 - OEIS

A218231

Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, vertical or antidiagonal neighbor in a random 0..2 nX6 array

49, 3839, 253825, 16187585, 1035156707, 66220959971, 4236306950287, 271005420795533, 17336767848485223, 1109068372629093745, 70949364820791381147, 4538775509557133929359, 290354722371972160509315

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 6 of A218233

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..72

EXAMPLE

Some solutions for n=3

..0..1..1..0..0..1....0..1..1..0..1..1....0..0..0..0..1..1....0..1..0..0..1..1

..0..0..0..1..1..0....0..0..1..1..1..0....0..1..0..1..0..1....0..1..0..1..1..0

..1..1..1..1..1..0....1..1..1..0..1..1....1..1..1..1..0..0....0..0..0..1..0..0