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A099701
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Consider the family of multigraphs enriched by the species of simple graphs. Sequence gives number of those multigraphs with n loops and edges.
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1, 2, 11, 101, 1355, 24733, 597686, 19975138, 1157593462, 177427216131, 76854836746273, 75062022205128613
(list; graph; refs; listen; history; internal format)
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