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A289600
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Related to number of mesh patterns of length 2 that avoid the pattern 321.
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0
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1, 1, 1, 2, 9, 33, 113, 381, 1291, 4425, 15357
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,4
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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