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A298165
Number of nX6 0..1 arrays with every element equal to 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.
1
0, 5, 5, 11, 18, 62, 133, 749, 2248, 11243, 43303, 213698, 862571, 4209880, 18541760, 85912154, 391299596, 1813446809, 8242953615, 38135967993, 174709622116, 803464643771, 3690832801362, 16981747383158, 77971455891314
OFFSET
1,2
COMMENTS
Column 6 of A298167.
LINKS
EXAMPLE
Some solutions for n=8
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..0..1..1..1. .0..0..0..1..1..1
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..1..0..1..1. .0..0..0..1..1..1
..1..1..1..0..1..1. .0..0..1..1..0..0. .1..1..1..0..0..1. .0..0..0..1..1..1
..1..1..0..0..1..1. .1..1..0..1..0..0. .1..1..0..0..1..1. .0..0..0..1..1..1
..0..0..1..1..0..0. .1..1..0..0..1..1. .0..0..1..1..0..1. .1..1..1..0..0..0
..0..0..0..1..0..0. .1..0..0..1..1..1. .0..0..1..0..0..1. .1..1..0..1..0..0
..1..1..0..0..1..1. .1..1..0..1..0..0. .1..1..0..0..1..1. .0..0..1..0..1..1
..1..1..1..1..1..1. .1..1..1..0..0..0. .1..1..1..1..1..1. .0..0..0..1..1..1
CROSSREFS
Cf. A298167.
Sequence in context: A141244 A121849 A164930 * A301800 A214827 A298955
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 14 2018
STATUS
approved