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Search: id:A099683
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| A099683 |
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Consider the family of multigraphs enriched by the species of ternary sets. Sequence gives number of those multigraphs with 3n arcs. |
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1
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| 1, 1, 61, 19545, 19204813, 43724593641, 195751661906589
(list; graph; listen)
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