A318429 - OEIS

A318429

Number of nX7 0..1 arrays with every element unequal to 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

8, 1634, 4095, 95349, 774731, 9600648, 99435165, 1103814944, 11993654843, 131130594420, 1434252580441, 15673240358415, 171453012097954, 1874658027499155, 20501732600130556, 224208780196235348

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

OFFSET

1,1

COMMENTS

Column 7 of A318430.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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