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A299220
Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
1
1, 864, 5066, 84948, 1992466, 48911434, 1226106440, 30729398000, 778116037031, 19790046600537, 502545421141263, 12776486958379265, 324936759791317709, 8263214485959250239, 210151973765681649219, 5344770791861074550207
OFFSET
1,2
COMMENTS
Column 7 of A299221.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0..0..0. .0..0..0..0..0..0..0. .0..0..0..1..0..0..0
..0..0..1..0..1..1..0. .0..0..1..1..1..1..0. .0..0..1..1..0..0..1
..0..1..0..1..0..1..1. .0..1..0..1..0..1..1. .0..1..0..0..0..0..0
..0..0..1..1..0..1..0. .0..0..1..0..0..0..1. .0..1..0..1..1..1..1
..0..0..0..0..0..1..1. .0..0..0..1..1..1..1. .0..0..1..1..1..0..1
CROSSREFS
Cf. A299221.
Sequence in context: A298507 A097982 A298327 * A300034 A064321 A210408
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 05 2018
STATUS
approved