A295715 - OEIS

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A295715

Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1, 2 or 4 1s.

128, 10329, 786804, 61023234, 4725935539, 366212961052, 28373170135641, 2198260487199227, 170316434139541414, 13195718014328336932, 1022372882849049101482, 79211033971975236785553

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

OFFSET

1,1

COMMENTS

Column 7 of A295716.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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