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A326159 Number of n X n 0..1 arrays with every element unequal to 0, 1, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 0
1, 3, 9, 85, 1136, 39808, 3984553, 1000921717, 666253766253, 1113066644514662 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A326165.
LINKS
EXAMPLE
Some solutions for n=5:
0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0
0 0 1 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0
0 1 1 1 1 1 0 1 0 1 1 0 1 1 0 1 0 1 0 1
0 0 1 0 1 1 0 1 1 0 0 0 1 0 0 1 1 1 0 0
0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 1 1 0 1 1
CROSSREFS
Cf. A326165.
Sequence in context: A274032 A032078 A307799 * A203559 A184098 A249789
KEYWORD
nonn,more
AUTHOR
R. H. Hardin, Jun 09 2019
STATUS
approved

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Last modified March 28 16:34 EDT 2024. Contains 371254 sequences. (Running on oeis4.)