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Search: id:A051590
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| A051590 |
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Number of oriented triangle graphs on {n choose 2} points. |
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+0
1
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| 1, 2, 112, 8948032, 1601279890171392, 8048575239544313784372575680
(list; graph; listen)
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OFFSET
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2,2
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REFERENCES
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R. H. Jeurissen and Th. Bezembinder, Enumerating oriented triangle graphs, Ars Comb.42(1996), 151-160
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FORMULA
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There is a formula for n \not= 4 in the reference, too complicated to repeat here.
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CROSSREFS
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Sequence in context: A012528 A024342 A012525 this_sequence A091302 A042567 A142112
Adjacent sequences: A051587 A051588 A051589 this_sequence A051591 A051592 A051593
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KEYWORD
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nonn
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AUTHOR
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R. H.Jeurissen (jeuris(AT)sci.kun.nl)
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