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A094030
Number of n-crossing knots with alternating braids of 3 strands.
3
1, 0, 2, 0, 8, 0, 23, 0, 71, 0, 225, 0, 746, 0, 2555, 0, 8999, 0, 32297, 0
OFFSET
4,3
REFERENCES
K. Murasugi and B. J. Kurpita, A Study of Braids, Kluwer Academic Publishers (1999), pp. 127-166
EXAMPLE
4 crossing knot (1 component link) can be represented as 3-strand braid AbAb that is alternating (overcrossings and undercrossing alternate).
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Thomas A. Gittings, Apr 22 2004
STATUS
approved