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A260536 Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010001 0
40, 131, 774, 2775, 9184, 50674, 219852, 991164, 6265304, 31978322, 161993488, 1205560940, 7787001888, 46339128440, 362482299512, 2995644789618 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A260544
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0..1..0....1..0..0..0..0..1....1..0..0..0..0..1....0..0..0..1..1..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..1..1..0..0..0....0..0..0..1..0..0....0..0..0..0..0..0....1..1..0..0..0..0
..0..0..0..0..0..1....1..0..0..1..0..0....0..0..0..0..0..0....0..0..0..0..1..0
..0..0..0..0..0..0....1..0..0..0..0..0....0..1..0..0..1..0....0..0..0..0..1..0
..0..1..1..0..0..0....0..0..0..0..0..1....1..1..0..0..1..1....1..1..0..0..0..0
CROSSREFS
Sequence in context: A044672 A044969 A300536 * A251137 A251130 A231077
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 28 2015
STATUS
approved

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Last modified July 18 01:34 EDT 2024. Contains 374377 sequences. (Running on oeis4.)