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A305180
Number of n X 6 0..1 arrays with every element unequal to 1, 2, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
1
5, 5, 29, 47, 137, 473, 836, 2109, 6105, 13157, 29710, 79848, 188417, 434271, 1083668, 2642078, 6258979, 15110414, 36879475, 88992860, 213051063, 516545526, 1254485401, 3011010117, 7264255595, 17633081795, 42495939909, 102388465505
OFFSET
1,1
COMMENTS
Column 6 of A305182.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..1..1..0. .0..1..1..1..1..0. .0..1..1..1..0..1. .0..1..0..0..1..0
..1..0..1..1..0..1. .1..0..1..1..0..1. .1..0..1..1..1..1. .0..0..0..0..0..0
..1..1..1..1..1..1. .1..1..1..1..1..1. .1..1..0..1..1..0. .0..0..0..0..1..0
..0..1..1..1..0..1. .0..1..1..1..1..0. .1..1..1..1..1..1. .0..1..0..1..0..1
..1..1..0..1..1..0. .1..1..1..0..1..1. .1..0..1..1..0..1. .1..0..0..0..1..1
CROSSREFS
Cf. A305182.
Sequence in context: A130220 A081847 A203124 * A284140 A284182 A020551
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 26 2018
STATUS
approved