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A052170
Number of directed multigraphs with n arcs.
+0
3
1, 1, 6, 24, 130, 688, 4211, 26840, 184153, 1328155, 10078617, 79926478, 660616432, 5671793248, 50459837996, 464139053799
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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