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A316816 Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero. 0
1, 8, 169, 9233, 1363249, 513913591, 521608116975, 1411340174061312, 10029910669507256358 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A316822.
LINKS
EXAMPLE
Some solutions for n=5
..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. .1..0..1..1..1. .0..0..0..0..0. .1..1..1..1..0
..0..1..1..0..1. .1..0..0..1..1. .0..0..1..0..0. .1..0..1..1..1
..0..1..1..1..1. .1..0..0..1..0. .1..0..0..1..0. .0..0..1..1..1
..0..0..1..1..0. .0..1..1..0..1. .0..1..0..0..1. .0..0..0..1..0
CROSSREFS
Cf. A316822.
Sequence in context: A264113 A181198 A302802 * A001534 A096486 A303463
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 14 2018
STATUS
approved

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Last modified April 13 15:06 EDT 2024. Contains 371644 sequences. (Running on oeis4.)