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A067643 Column 3 of table in A067640. 1
70, 2352, 47820, 784672, 11515714, 158295072, 2086803540, 26737722400, 335676172480, 4150940757440, 50739269522864, 614607881444256, 7390867767651290 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..12.

J. L. Jacobsen and P. Zinn-Justin, A Transfer Matrix approach to the Enumeration of Knots

CROSSREFS

Sequence in context: A163022 A271031 A006437 * A285170 A017786 A035730

Adjacent sequences:  A067640 A067641 A067642 * A067644 A067645 A067646

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Feb 05 2002

STATUS

approved

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Last modified June 17 14:09 EDT 2019. Contains 324185 sequences. (Running on oeis4.)