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A298507 Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero. 1
1, 864, 2093, 35908, 795788, 16092678, 364785216, 7961618817, 177727031452, 3976975727003, 88606359445706, 1981050573358995, 44268615975150111, 989210454742847130, 22108245705766896050, 494089956294383955284 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A298508.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A298508.

Sequence in context: A203662 A179671 A297914 * A097982 A298327 A299220

Adjacent sequences:  A298504 A298505 A298506 * A298508 A298509 A298510

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 20 2018

STATUS

approved

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Last modified April 18 12:45 EDT 2021. Contains 343088 sequences. (Running on oeis4.)