The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A067768 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing all changes.

A067768

Number of alternating link diagrams with n crossings, 3 connected components and two external legs.
(history; published version)

#4 by Russ Cox at Fri Mar 30 16:49:18 EDT 2012

AUTHOR

_N. J. A. Sloane (njas(AT)research.att.com), _, Feb 09 2002

Discussion

Fri Mar 30

16:49

OEIS Server: https://oeis.org/edit/global/110

#3 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

KEYWORD

nonn,new

nonn

AUTHOR

N. J. A. Sloane (njas, (AT)research.att.com), Feb 09 2002

#2 by N. J. A. Sloane at Sat Jun 12 03:00:00 EDT 2004

NAME

Alternating Number of alternating link diagrams with n crossings, 3 connected components and two external legs.

KEYWORD

nonn,new

nonn

#1 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

NAME

Alternating link diagrams with n crossings, 3 connected components and two external legs.

DATA

22, 728, 14884, 244908, 3575045, 48517524, 628013796, 7871666088, 96451145091, 1162484964230, 13840075278704, 163246693686684, 1911737961254907, 22262254374655710

OFFSET

6,1

LINKS

J. L. Jacobsen and P. Zinn-Justin, <a href="http://arXiv.org/abs/math-ph/0104009">A Transfer Matrix approach to the Enumeration of Colored Links</a>, J. Knot Theory, 10 (2001), 1233-1267.

CROSSREFS

A column of A062038.

KEYWORD

nonn

AUTHOR

njas, Feb 09 2002

STATUS

approved