A219077 - OEIS

A219077

Hilltop maps: number of nX7 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..1 nX7 array

57, 9367, 1023441, 113959413, 12998933707, 1473655240387, 167024618548071, 18939932662217929, 2147519964457580465, 243494396494378271955, 27608646901560676777421, 3130407281278669890215213

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

OFFSET

1,1

COMMENTS

Column 7 of A219078

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..119

EXAMPLE

Some solutions for n=3

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

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

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