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A305339 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 5 or 8 king-move adjacent elements, with upper left element zero. 1
64, 101, 431, 3186, 23348, 176673, 1321695, 9959836, 75112075, 566241938, 4269343299, 32193597374, 242759393636, 1830541536206, 13803437729415, 104086731979129, 784879875501723, 5918493129030554, 44629209229558533 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A305340.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..0..0..0. .0..0..0..0..0..1..0. .0..1..0..1..0..0..0
..0..0..0..0..0..0..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..1
..0..1..0..0..0..0..0. .0..0..0..0..0..0..0. .1..0..0..0..0..0..0
..0..0..0..0..0..0..1. .0..1..0..0..0..0..0. .0..0..0..1..0..1..0
..0..0..0..0..0..0..0. .0..0..0..1..0..0..0. .0..1..0..0..0..0..0
CROSSREFS
Cf. A305340.
Sequence in context: A088033 A303960 A304603 * A304925 A316419 A306165
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 30 2018
STATUS
approved

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Last modified May 19 10:22 EDT 2024. Contains 372683 sequences. (Running on oeis4.)