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A316173
Number of nX5 0..1 arrays with every element unequal to 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
1
3, 51, 113, 331, 3087, 16382, 66575, 500251, 3416740, 19047049, 129559620, 890468688, 5562164262, 37167105351, 250462725049, 1626396906120, 10812077191872, 72132909231600, 474626430850484, 3149382854919519
OFFSET
1,1
COMMENTS
Column 5 of A316176.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..1. .0..1..1..0..1. .0..1..1..0..1. .0..1..0..0..1
..1..1..0..1..0. .0..1..1..1..1. .0..1..1..1..1. .0..0..0..1..0
..1..1..1..1..1. .1..1..1..1..0. .0..0..1..1..0. .0..1..0..1..1
..0..1..1..1..1. .1..1..1..0..1. .0..1..1..1..0. .1..0..1..1..0
..1..1..1..0..1. .1..0..0..0..0. .1..0..1..1..1. .1..1..1..1..1
CROSSREFS
Cf. A316176.
Sequence in context: A227069 A062216 A305012 * A316645 A116630 A317455
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 25 2018
STATUS
approved