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A297914
Number of nX7 0..1 arrays with every element equal to 0, 2, 3 or 4 king-move adjacent elements, with upper left element zero.
1
1, 864, 2016, 35788, 789026, 15983426, 362523451, 7903384843, 176308045666, 3941879866879, 87755060397182, 1960425981130977, 43770946796249155, 977291527301161623, 21823838569731609645, 487330565461513151643
OFFSET
1,2
COMMENTS
Column 7 of A297915.
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..0..1..1..1. .0..1..0..1..1..1..0. .0..0..1..0..1..1..0
..0..0..1..1..1..0..1. .1..1..0..0..1..0..0. .0..0..0..0..0..1..1
..1..1..0..0..0..0..1. .0..0..1..0..1..0..1. .1..1..1..1..1..0..0
..1..0..0..1..0..1..1. .1..0..0..1..1..0..0. .1..1..0..1..0..0..1
CROSSREFS
Cf. A297915.
Sequence in context: A184451 A203662 A179671 * A298507 A097982 A298327
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 08 2018
STATUS
approved