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A067768 Number of alternating link diagrams with n crossings, 3 connected components and two external legs. 1

%I

%S 22,728,14884,244908,3575045,48517524,628013796,7871666088,

%T 96451145091,1162484964230,13840075278704,163246693686684,

%U 1911737961254907,22262254374655710

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

%H 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.

%Y A column of A062038.

%K nonn

%O 6,1

%A _N. J. A. Sloane_, Feb 09 2002

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Last modified October 22 09:44 EDT 2021. Contains 348160 sequences. (Running on oeis4.)