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A305768 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero. 1
64, 5912, 76613, 1696681, 33584061, 686168124, 14187207394, 291309897184, 6009246932279, 123790207848539, 2550812879145083, 52567071084185534, 1083186544004971825, 22321284249041523443, 459966262586941188849 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A305769.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A305769.

Sequence in context: A321207 A281954 A316182 * A317117 A305529 A317003

Adjacent sequences:  A305765 A305766 A305767 * A305769 A305770 A305771

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 10 2018

STATUS

approved

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Last modified January 17 20:06 EST 2022. Contains 350410 sequences. (Running on oeis4.)