A087071 Number of distinct prime 4-component links with crossing number n.

0, 0, 0, 0, 0, 0, 0, 3, 1, 25, 39, 307, 1161

Offset

1,8

Links

Table of n, a(n) for n=1..13.

D. Bar-Natan, The Hoste-Thistlethwaite Link Table.

Dylan Joshua Faullin, The Classification of Links of Up To And Including Thirteen Crossings, Master's Thesis, University of Tennessee, 2005.

Eric Weisstein's World of Mathematics, Prime Link

Crossrefs

Cf. A002863, A048952, A048953, A086771.

Sequence in context: A104033 A217472 A156654 * A363736 A098815 A300457

Adjacent sequences: A087068 A087069 A087070 * A087072 A087073 A087074

Keyword

nonn,more

Author

Steven Finch and Eric W. Weisstein, Aug 07 2003

Extensions

a(10) corrected, a(12)-a(13) from Faullin added by Andrey Zabolotskiy, Feb 27 2023

Status

approved