A089790 Number of projections of rational knots and links with n crossings.

1, 1, 2, 3, 7, 14, 38, 98, 300, 937

Offset

2,3

Links

Table of n, a(n) for n=2..11.

Alain 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.

Slavik Jablan, Ordering Knots.

Slavik Jablan and Radmila Sazdanovic, LinKnot.

T. P. Kirkman, The enumeration, description and construction of knots of fewer than ten crossings, Trans. Roy. Soc. Edinburgh 32 (1885), 281-309, doi:10.1017/S0080456800026788.

P. G. Tait, On knots, Trans. Roy. Soc. Edin. 28 (1876/77), 145-190.

Crossrefs

Cf. A005418 (number of rational knots and links).

Sequence in context: A090828 A296416 A049367 * A296417 A296418 A006785

Adjacent sequences: A089787 A089788 A089789 * A089791 A089792 A089793

Keyword

nonn,obsc,more

Author

Slavik Jablan and Radmila Sazdanovic, Jan 09 2004

Status

approved