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A067641 Column 1 of table in A067640. 1
2, 20, 174, 1504, 13300, 120744, 1122198, 10638464, 102541428, 1002305040, 9914663308, 99085515840, 999104604784, 10153152363648, 103892246982390, 1069610792999424, 11072575568623300, 115189593628215600 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..17.

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

CROSSREFS

Sequence in context: A144485 A115489 A105493 * A279462 A037566 A125857

Adjacent sequences:  A067638 A067639 A067640 * A067642 A067643 A067644

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Feb 05 2002

STATUS

approved

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Last modified July 24 05:21 EDT 2019. Contains 325290 sequences. (Running on oeis4.)