A067641 Column 1 of table in A067640.

2, 20, 174, 1504, 13300, 120744, 1122198, 10638464, 102541428, 1002305040, 9914663308, 99085515840, 999104604784, 10153152363648, 103892246982390, 1069610792999424, 11072575568623300, 115189593628215600

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: A115489 A367939 A105493 * A279462 A037566 A125857

Adjacent sequences: A067638 A067639 A067640 * A067642 A067643 A067644

Keyword

nonn

Author

N. J. A. Sloane, Feb 05 2002

Status

approved