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Search: id:A121331
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| A121331 |
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Number of bridged bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition). |
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+0
6
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| 1, 2, 6, 15, 39, 99, 258, 671, 1762, 4657, 12372, 33036, 88590, 238483, 644045, 1744542, 4737341, 12894158, 35165994, 96084192, 262951511
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OFFSET
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5,2
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REFERENCES
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Camden A. Parks and James B. Hendrickson, Enumeration of monocyclic and bicyclic carbon skeletons, J. Chem. Inf. Comput. Sci., vol. 31, 334-339 (1991).
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CROSSREFS
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Sequence in context: A101522 A094969 A001674 this_sequence A026270 A001654 A062106
Adjacent sequences: A121328 A121329 A121330 this_sequence A121332 A121333 A121334
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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), Aug 27 2006
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EXTENSIONS
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Corrected by Franklin T. Adams-Watters and T. D. Noe (noe(AT)sspectra.com), Oct 25 2006
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