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Search: id:A005960
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| A005960 |
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Number of paraffins with n carbon atoms.
(Formerly M2747)
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+0
1
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| 1, 3, 8, 23, 69, 208, 636, 1963, 6099, 19059, 59836, 188576, 596252, 1890548, 6008908, 19139155, 61074583, 195217253, 624913284, 2003090071, 6428430129, 20653101216
(list; graph; listen)
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OFFSET
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1,2
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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).
R. C. Read, The Enumeration of Acyclic Chemical Compounds, pp. 25-61 of A. T. Balaban, ed., Chemical Applications of Graph Theory, Ac. Press, 1976; see p. 44.
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CROSSREFS
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Sequence in context: A025262 A056010 A002712 this_sequence A061557 A000782 A148775
Adjacent sequences: A005957 A005958 A005959 this_sequence A005961 A005962 A005963
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KEYWORD
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nonn,more
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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