A326164 - OEIS

A326164

Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

21, 91, 396, 2644, 27902, 307759, 3984553, 50108120, 631752599, 7873793259, 97914938383, 1217849040638, 15154502797138, 188732168188613, 2350844998230808, 29285586927132940, 364802626463161313

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OFFSET

1,1

COMMENTS

Column 7 of A326165.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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