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A317901 Number of nX7 0..1 arrays with every element unequal to 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
0, 22, 6, 116, 315, 502, 3630, 7770, 34645, 86317, 320622, 966922, 3306875, 10609266, 34934092, 114138685, 374143779, 1227335831, 4020363887, 13193058120, 43248448731, 141915161267, 465495771858, 1527373960376, 5011467375946 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A317902.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A317902.

Sequence in context: A040469 A040468 A317740 * A040467 A194708 A069285

Adjacent sequences:  A317898 A317899 A317900 * A317902 A317903 A317904

KEYWORD

nonn

AUTHOR

R. H. Hardin, Aug 10 2018

STATUS

approved

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Last modified January 24 21:49 EST 2022. Contains 350565 sequences. (Running on oeis4.)