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A303968 Number of nX7 0..1 arrays with every element unequal to 0, 1, 3 or 5 king-move adjacent elements, with upper left element zero. 1
21, 237, 186, 842, 2247, 6264, 15517, 40239, 101894, 275913, 742329, 1970215, 5207495, 13783510, 36338058, 96289588, 255453841, 676717260, 1792458697, 4748791014, 12573506308, 33301968773, 88224464420, 233692020122 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A303969.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

CROSSREFS

Cf. A303969.

Sequence in context: A350570 A069601 A173347 * A304930 A305346 A316614

Adjacent sequences:  A303965 A303966 A303967 * A303969 A303970 A303971

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 03 2018

STATUS

approved

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Last modified May 28 09:09 EDT 2022. Contains 354112 sequences. (Running on oeis4.)