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Search: id:A003515
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| A003515 |
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Number of series-reduced connected labeled graphs with n nodes.
(Formerly M4009)
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+0
1
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| 0, 1, 1, 0, 5, 51, 3634, 374119, 73161880, 26545249985, 17904840957826, 22602069719494379, 53938847227326533032, 246107945479472758874483, 2170331943503938546383205218
(list; graph; listen)
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OFFSET
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0,5
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
D. M. Jackson and J. W. Reilly, The enumeration of homeomorphically irreducible labeled graphs, J. Combin. Theory, B 19 (1975), 272-286.
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CROSSREFS
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Sequence in context: A111340 A124559 A022516 this_sequence A022501 A134097 A067282
Adjacent sequences: A003512 A003513 A003514 this_sequence A003516 A003517 A003518
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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