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Search: id:A050535
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| A050535 |
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Number of multigraphs on infinite set of nodes with n edges. |
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+0
16
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| 1, 1, 3, 8, 23, 66, 212, 686, 2389, 8682, 33160, 132277, 550835, 2384411, 10709827
(list; graph; listen)
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OFFSET
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0,3
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REFERENCES
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F. Harary and E. M. Palmer, Graphical Enumeration, Academic Press, NY, 1973, p. 88, Eq. (4.1.18).
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LINKS
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Number of m-rowed binary matrices with all row sums equal to n, up to row and column permutation
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CROSSREFS
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Cf. A001399, A003082, A014395-A014398.
Cf. A058389, A050913, A058783, A058390, A058784, A058785, A058391, A058392, A001501, A058528
Sequence in context: A147704 A116410 A106606 this_sequence A025578 A038151 A057198
Adjacent sequences: A050532 A050533 A050534 this_sequence A050536 A050537 A050538
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KEYWORD
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more,nonn
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AUTHOR
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Vladeta Jovovic (vladeta(AT)eunet.rs), Dec 29 1999
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