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A304471 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero. 1
64, 719, 2208, 8254, 68338, 380640, 1802240, 12149499, 76809028, 414339658, 2506312732, 15834976447, 91945106122, 542541369889, 3341140747840, 19987650956102, 118370747871295, 716642725644643, 4320134327579730 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A304472.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0..0..1. .0..0..0..0..0..0..1. .0..1..0..1..1..1..1
..0..0..1..1..0..0..0. .0..0..0..0..0..1..0. .1..1..0..0..1..1..0
..0..0..0..0..0..1..1. .0..0..1..1..1..0..0. .1..1..1..1..1..0..0
..0..0..1..0..0..1..0. .0..1..0..0..0..0..0. .0..0..1..1..1..1..1
..0..0..1..1..0..0..0. .1..0..0..0..0..0..0. .1..0..1..1..1..1..1
CROSSREFS
Cf. A304472.
Sequence in context: A305229 A304774 A316517 * A316288 A306052 A317229
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 13 2018
STATUS
approved

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Last modified July 22 15:36 EDT 2024. Contains 374538 sequences. (Running on oeis4.)