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A298098
Number of nX6 0..1 arrays with every element equal to 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
1
0, 5, 3, 20, 70, 847, 2934, 27671, 139992, 1031816, 5985115, 41326422, 252034826, 1675068288, 10527431309, 68645440055, 436700979975, 2826143858103, 18075619384704, 116539777329390, 747352195049649, 4809997865329487
OFFSET
1,2
COMMENTS
Column 6 of A298100.
LINKS
EXAMPLE
Some solutions for n=7
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..0..0..0..0. .0..0..1..1..0..0
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..1..1..0..0
..0..1..1..0..0..0. .0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..1..0..0..0
..0..1..1..1..0..0. .1..1..1..0..1..0. .0..1..1..0..0..0. .0..1..1..1..0..0
..0..0..1..1..1..0. .1..1..0..1..0..1. .1..0..0..0..1..1. .1..0..0..1..0..0
..0..0..1..1..0..0. .1..1..0..0..1..1. .1..1..0..0..1..1. .1..1..0..0..1..1
..0..0..1..1..0..0. .1..1..0..0..1..1. .1..1..1..1..1..1. .1..1..0..0..1..1
CROSSREFS
Cf. A298100.
Sequence in context: A101367 A338790 A256565 * A248256 A369039 A049457
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 12 2018
STATUS
approved