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A185520 Number of (n+1)X9 0..2 arrays with every 2X2 subblock singular 1
841449, 853020411, 119752453041, 56140705014995, 12721664424927033, 4536327635584899147, 1241739109392066416737, 401495654334865659721795, 118095161592668358071069961, 36895636527963491594862394779 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 8 of A185521
LINKS
EXAMPLE
Some solutions for 3X9
..0..0..0..0..0..0..2..0..0....0..0..0..0..2..0..0..1..1
..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0
..0..0..0..0..0..2..0..0..0....0..0..1..0..0..0..1..1..1
CROSSREFS
Sequence in context: A015390 A263038 A043623 * A157078 A160548 A259014
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 29 2011
STATUS
approved

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Last modified May 29 05:33 EDT 2024. Contains 372921 sequences. (Running on oeis4.)