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A305481 Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 6 or 8 king-move adjacent elements, with upper left element zero. 1
21, 103, 125, 368, 1245, 3910, 11438, 34687, 106558, 317866, 952180, 2866802, 8566865, 25602599, 76565334, 228533963, 682228237, 2036249074, 6073671043, 18119697325, 54049396886, 161180119634, 480704637867, 1433586580256 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A305482.

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

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

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

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

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

CROSSREFS

Cf. A305482.

Sequence in context: A303681 A304132 A304220 * A219385 A219297 A160082

Adjacent sequences:  A305478 A305479 A305480 * A305482 A305483 A305484

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 02 2018

STATUS

approved

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Last modified July 25 09:42 EDT 2021. Contains 346289 sequences. (Running on oeis4.)