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A213685
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Arises in enumerating maximal antichains of minimum size.
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0
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1, 3, 6, 9, 12, 17, 22, 28, 33, 41, 48, 57, 64
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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4,2
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COMMENTS
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Rightmost column of Table 1: Computational results for small values of n, of Kalinowski.
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LINKS
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Table of n, a(n) for n=4..16.
Thomas Kalinowski, Uwe Leck, Ian T. Roberts, Maximal antichains of minimum size, arXiv:1206.3007v1 [math.CO], Jun 14 2012.
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CROSSREFS
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Sequence in context: A356104 A127621 A049707 * A271449 A261956 A344683
Adjacent sequences: A213682 A213683 A213684 * A213686 A213687 A213688
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KEYWORD
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hard,nonn,more
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AUTHOR
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Jonathan Vos Post, Jun 17 2012
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STATUS
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approved
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