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A318042 Number of nX5 0..1 arrays with every element unequal to 0, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
1, 6, 86, 905, 10563, 116212, 1304057, 14683085, 165135266, 1856998899, 20884326520, 234874162302, 2641473216596, 29706814482309, 334092069568548, 3757304519668705, 42255828257649535, 475222320626098607 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 5 of A318045.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..0. .0..1..0..1..0. .0..1..0..1..0. .0..0..0..1..0
..1..0..0..1..0. .1..0..0..1..0. .1..0..0..1..0. .0..0..1..0..1
..0..1..1..1..1. .0..1..0..1..1. .0..1..1..1..1. .0..1..1..0..1
..0..1..0..0..0. .1..1..0..0..0. .1..0..0..1..0. .1..1..0..0..0
..1..0..1..0..1. .0..0..1..0..1. .0..1..0..0..1. .0..0..1..0..1
CROSSREFS
Cf. A318045.
Sequence in context: A358297 A209035 A230782 * A155654 A231165 A091881
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 13 2018
STATUS
approved

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Last modified April 12 06:13 EDT 2024. Contains 371623 sequences. (Running on oeis4.)