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Search: id:A049344
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A049344 Prime unoriented alternating links (not necessarily connected knots) with n crossings. +0
2
0, 1, 1, 2, 3, 8, 14, 39, 96, 297, 915, 3308, 12417, 51347, 222595, 1016975, 4799520, 23301779, 115405815 (list; graph; listen)
OFFSET

1,4

LINKS

S. R. Finch, Knots, links and tangles

CROSSREFS

Cf. A002864. Row sums of A059739.

Adjacent sequences: A049341 A049342 A049343 this_sequence A049345 A049346 A049347

Sequence in context: A022951 A128305 A129700 this_sequence A080877 A007165 A107321

KEYWORD

nonn,nice,hard

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Feb 10 2001

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.


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