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A298086
Number of nX7 0..1 arrays with every element equal to 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
1
0, 34, 18, 213, 1574, 11202, 65218, 479206, 3481050, 24695892, 177272585, 1292781132, 9346339114, 67597407637, 490930663188, 3562917786488, 25842902976432, 187580825378770, 1361838171557890, 9885195460409937
OFFSET
1,2
COMMENTS
Column 7 of A298087.
LINKS
EXAMPLE
Some solutions for n=7
..0..0..0..0..0..0..0. .0..0..0..0..0..0..1. .0..0..1..1..0..1..1
..0..1..1..1..1..1..0. .0..1..1..1..0..1..1. .0..1..1..0..0..0..1
..1..0..1..0..0..1..0. .1..0..1..0..0..1..0. .1..1..1..1..1..1..0
..0..1..0..1..0..1..0. .1..0..0..0..0..0..0. .0..0..1..1..0..0..1
..0..0..1..1..0..1..0. .0..1..1..0..0..1..0. .0..0..1..0..1..1..0
..1..0..0..0..1..1..0. .0..0..1..1..0..1..1. .0..0..1..0..0..0..1
..1..1..1..1..1..0..0. .0..1..1..0..0..0..1. .0..0..1..1..1..1..1
CROSSREFS
Cf. A298087.
Sequence in context: A301826 A033354 A033972 * A114031 A133733 A214038
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 12 2018
STATUS
approved