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A067646
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Number of prime alternating tangles (or knots) with two connected components.
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2
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1, 2, 4, 8, 24, 72, 264, 1074, 4490, 20296, 92768, 439148, 2118654, 10377708, 51740280, 260545092, 1328891356, 6836872181
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 21 2003
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STATUS
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approved
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