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Search: id:A089891
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| A089891 |
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Number of knots and links with unknotting (unlinking) number U=1. |
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+0
1
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OFFSET
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2,4
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REFERENCES
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Kawauchi, A. (1996) A Survey of Knot Theory, Birkhauser, Basel, Boston, Berlin.
Kohn, P. (1993) Unlinking two component links, Osaka J. Math. 30, 741-752.
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LINKS
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Jablan S., Ordering Knots.
Jablan S., Sazdanovic R., LinKnot.
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CROSSREFS
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Cf. A078477.
Sequence in context: A140489 A051915 A064688 this_sequence A004689 A124370 A003428
Adjacent sequences: A089888 A089889 A089890 this_sequence A089892 A089893 A089894
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KEYWORD
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nonn
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AUTHOR
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Slavik Jablan and Radmila Sazdanovic (jablans(AT)yahoo.com), Jan 10 2004
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