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A055192
Number of bipartite graphs with n vertices, no isolated vertices and a distinguished bipartite block, up to isomorphism.
+0
6
1, 2, 5, 12, 35, 108, 393, 1666, 8543, 54190, 436740, 4565450, 62930604, 1156277748, 28509174012, 946786816168, 42448800498744, 2573207315483554, 211180300735118954, 23490473719472829824, 3545759835559406756008
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.
AT&T Labs Research
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