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Search: id:A123537
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A123537 Erroneous version of A005644 (there appears to be a typo in a(9)). +0
1
1, 26, 1768, 225096, 51725352, 21132802554, 15463799747936, 20604021770403328, 50928019401158515328, 237644423948928994197504, 2125373296900166452199861760 (list; graph; listen)
OFFSET

4,2

REFERENCES

Walsh, T. R. S.; Counting labeled three-connected and homeomorphically irreducible two-connected graphs. J. Combin. Theory Ser. B 32 (1982), no. 1, 1-11.

CROSSREFS

Sequence in context: A042300 A080163 A005644 this_sequence A054597 A005643 A054853

Adjacent sequences: A123534 A123535 A123536 this_sequence A123538 A123539 A123540

KEYWORD

dead

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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.


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