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Search: id:A005961
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| A005961 |
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Number of paraffins with n carbon atoms.
(Formerly M1447)
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+0
1
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| 1, 2, 5, 13, 37, 108, 325, 993, 3070, 9564, 29979, 94392, 298311, 945592, 3005021, 9570559, 30539044, 97611676, 312462096, 1001554565, 3214232129, 10326580526, 33210135104
(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: A019415 A092395 A019268 this_sequence A036249 A126031 A151416
Adjacent sequences: A005958 A005959 A005960 this_sequence A005962 A005963 A005964
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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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