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A317571
Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
1
64, 5912, 199987, 8305672, 376898848, 16121282196, 703696012516, 30722175114871, 1337502015395808, 58309965342784953, 2541502467315526566, 110764465819955958339, 4827733372971557091616, 210414786612025217073490
OFFSET
1,1
COMMENTS
Column 7 of A317572.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0..0..0. .0..0..0..1..1..0..1. .0..0..0..0..1..1..1
..0..0..0..1..1..0..0. .0..0..0..0..1..0..0. .0..0..0..0..1..1..1
..0..0..0..1..1..1..1. .0..0..0..0..0..0..0. .0..0..0..0..1..1..1
..0..0..0..0..1..0..0. .0..0..0..1..0..0..0. .0..0..0..1..1..1..1
..0..0..0..1..0..0..0. .0..0..0..0..1..0..0. .0..0..0..0..0..0..0
CROSSREFS
Cf. A317572.
Sequence in context: A305529 A317003 A316821 * A240346 A009823 A222100
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 31 2018
STATUS
approved