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A302673 Number of 7Xn 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
0, 1172, 10660, 106793, 2320879, 35549458, 637088915, 11181864782, 188509564214, 3339792969770, 57406756149300, 997632805281762, 17363763785624592, 300575131517843683, 5229363965628293685, 90736499929821199253 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 7 of A302670.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

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

CROSSREFS

Cf. A302670.

Sequence in context: A253508 A235206 A302230 * A230706 A302477 A303258

Adjacent sequences:  A302670 A302671 A302672 * A302674 A302675 A302676

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 11 2018

STATUS

approved

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Last modified October 6 23:36 EDT 2022. Contains 357270 sequences. (Running on oeis4.)