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A361584
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Number of digraphs on n unlabeled nodes whose strongly connected components are directed cycles or single vertices.
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2
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1, 1, 3, 12, 88, 1239, 36540, 2226595, 277421616, 69974281748, 35535207035048, 36224521019293188, 74004483908461354689, 302712665772844097945072, 2477999475270966827490305948, 40583406022745170376459610683073, 1329552679157905406495248763876363056
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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LINKS
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FORMULA
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PROG
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(PARI) A361584seq(16) \\ See PARI link in A350794 for program code.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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