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A072606
Number of pretzel (stellar or prismatic) knots and links.
0
1, 1, 3, 4, 8, 10, 19, 24
OFFSET
6,3
REFERENCES
Conway, J. (1970) An enumeration of knots and links and some of their related properties, in Computational Problems in Abstract Algebra, Proc. Conf. Oxford 1967 (Ed. J. Leech), 329-358, Pergamon Press, New York.
LINKS
A. Caudron, Classification des noeuds et des enlacements, Public. Math. d'Orsay 82. Orsay: Univ. Paris Sud, Dept. Math., 1982.
Alain Caudron, Classification des noeuds et des enlacements (Thèse et additifs), Univ. Paris-Sud, 1989 [Scanned copy, included with permission] Contains additional material.
S. V. Jablan, Ordering Knots
S. V. Jablan and Radmila Sazdanovic, LinKnot
EXAMPLE
E.g. knots and links given in Conway notation as 2,2,2 for n=6, 3,2,2 for n=7, 2,2,2,2; 3,3,2; 4,2,2 for n=8, etc.
CROSSREFS
Sequence in context: A326636 A210249 A233771 * A098764 A105407 A222395
KEYWORD
nonn,more
AUTHOR
Slavik Jablan and Radmila Sazdanovic, Jan 03 2004
STATUS
approved