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A360881
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Number of unlabeled nonseparable (or 2-connected) multigraphs with n edges, loops allowed.
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1
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1, 2, 5, 9, 19, 44, 111, 328, 1090, 3988, 15838, 67295, 301417, 1412821, 6882398, 34682721, 180170661, 962288228, 5273162329
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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