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A259993 Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000101 0
48, 269, 2532, 12620, 55276, 760397, 4405472, 16728076, 252106808, 2271107674, 11377346280, 109672934102, 1249209797976, 12832413750726, 113080397436236, 943724463804782 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A260001
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0..0..1....0..1..1..0..0..0....0..0..0..0..0..0....1..0..0..0..1..1
..0..0..1..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..1..0..0..1..0
..0..0..1..0..0..1....0..0..0..0..0..1....1..0..0..1..1..0....0..0..0..0..0..0
..0..0..0..0..0..0....0..0..1..0..0..1....0..0..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..0..0....0..0..1..0..0..0....1..0..0..0..0..0....1..0..0..1..1..0
..0..1..1..0..1..1....0..0..0..0..0..0....0..0..0..1..0..0....0..0..0..1..0..0
CROSSREFS
Sequence in context: A205469 A115056 A001337 * A205747 A173121 A281234
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 12 2015
STATUS
approved

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Last modified May 27 16:57 EDT 2024. Contains 372880 sequences. (Running on oeis4.)