A303512 - OEIS

A303512

Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

64, 960, 9367, 222205, 5122419, 104285205, 2346396384, 53305999504, 1176790967846, 26406239839389, 594228391498452, 13296124650266098, 298383751528089406, 6701075635866431148, 150325174488061644815

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

OFFSET

1,1

COMMENTS

Column 7 of A303513.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=5

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

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

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