A284081 - OEIS

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A284081

Number of 7Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.

0, 0, 353608, 48994058, 6011835223, 700044712076, 74965549398304, 7663959789277668, 759541318384819140, 73293744586522740828, 6926137628336309991716, 643615455040297408956707

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

OFFSET

1,3

COMMENTS

Row 7 of A284075.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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