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A302819 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
64, 960, 7900, 170262, 3252934, 58122740, 1135257814, 22294687742, 427140472935, 8302040868397, 161951214852377, 3140738898721896, 61036498168516642, 1187741080719613728, 23082916011414934514, 448705985586604686474 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A302820.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A302820.

Sequence in context: A253133 A302321 A303015 * A303512 A000818 A220678

Adjacent sequences:  A302816 A302817 A302818 * A302820 A302821 A302822

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 13 2018

STATUS

approved

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Last modified October 28 10:01 EDT 2021. Contains 348327 sequences. (Running on oeis4.)