A062386 - OEIS

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A062386

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

1

1, 12, 114, 1030, 9290, 84840, 787082, 7415814, 70867212, 685839770, 6712285600, 66349573368, 661680191832, 6651030871168, 67329662060890, 685953949494774, 7028941367108708, 72403769391718890

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OFFSET

2,2

LINKS

Table of n, a(n) for n=2..19.

J. L. Jacobsen and P. Zinn-Justin, A Transfer Matrix approach to the Enumeration of Colored Links, J. Knot Theory, 10 (2001), 1233-1267.

CROSSREFS

A column of A062038.

Sequence in context: A331515 A154237 A006635 * A080602 A333299 A090250

Adjacent sequences: A062383 A062384 A062385 * A062387 A062388 A062389

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Feb 09 2002

STATUS

approved