

A054316


Number of unlabeled 2connected 3edgeconnected graphs with n nodes.


4



1, 3, 19, 149, 2578, 84127, 5201474, 577043450, 113371887160, 39618007594177, 24916462201698733, 28563626901315427552, 60366734333061918085970, 237406975833857522512566844, 1750330441805919888169149998870
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OFFSET

4,2


LINKS



CROSSREFS



KEYWORD

hard,nice,nonn


AUTHOR

Sridar K. Pootheri (sridar(AT)math.uga.edu), Feb 25 2000


STATUS

approved



