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A130315 Number of nontrivial (triangle-free and girth >=5) snarks on 2n nodes. +0
1
0, 0, 0, 0, 1, 0, 0, 0, 2, 6, 20, 38, 280, 2900 (list; graph; listen)
OFFSET

1,9
LINKS

Eric Weisstein's World of Mathematics, Snark

CROSSREFS

Sequence in context: A131441 A035142 A064701 this_sequence A087150 A087134 A036689

Adjacent sequences: A130312 A130313 A130314 this_sequence A130316 A130317 A130318

KEYWORD

nonn,more

AUTHOR

Eric Weisstein (eric(AT)weisstein.com), May 22, 2007

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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