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A302882 Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
64, 86, 536, 2938, 23037, 320405, 3780984, 44148194, 588417750, 8234641702, 109042468735, 1419909251038, 19277374758266, 264983349356693, 3552177386205259, 47276138831810619, 639816255891989376 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A302877.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

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

CROSSREFS

Cf. A302877.

Sequence in context: A303202 A302315 A303045 * A303530 A119894 A138667

Adjacent sequences:  A302879 A302880 A302881 * A302883 A302884 A302885

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 15 2018

STATUS

approved

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Last modified October 19 03:15 EDT 2019. Contains 328211 sequences. (Running on oeis4.)