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A304930 Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 5 or 7 king-move adjacent elements, with upper left element zero. 1
21, 237, 186, 842, 2265, 6426, 15993, 42032, 107527, 294610, 802939, 2150494, 5755142, 15441423, 41220407, 110573603, 297147846, 796997468, 2138394333, 5740020020, 15394935940, 41303582771, 110856414628, 297465011704 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A304931.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A304931.

Sequence in context: A069601 A173347 A303968 * A305346 A316614 A304668

Adjacent sequences:  A304927 A304928 A304929 * A304931 A304932 A304933

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 21 2018

STATUS

approved

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Last modified May 20 23:05 EDT 2022. Contains 353886 sequences. (Running on oeis4.)