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Search: id:A108070
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| A108070 |
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Number of fusenes with n hexagons. |
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+0
3
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| 1, 1, 3, 7, 22, 82, 339, 1505, 7036, 33836, 166246, 829987, 4197273, 21456444, 110716585, 576027737, 3018986040, 15927330105, 84530870455, 451069339063, 2418927725532, 13030938290472, 70492771581350, 382816374644336, 2086362209298079, 11408580755666756
(list; graph; listen)
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OFFSET
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1,3
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REFERENCES
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Gunnar Brinkmann, Gilles Caporossi and Pierre Hansen, A constructive enumeration of fusenes and benzenoids, Journal of Algorithms 45 (2002), pp. 155-166.
Gunnar Brinkmann, Gilles Caporossi and Pierre Hansen, A survey and new results on computer enumeration of polyhex and fusene hydrocarbons, J. Chem. Inf. Comput. Sci., 43 (2003), 842-851.
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LINKS
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Eric Weisstein's World of Mathematics, Fusene
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CROSSREFS
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Cf. A018190, A108071, A108072.
Sequence in context: A111772 A018190 A000228 this_sequence A038147 A082271 A069505
Adjacent sequences: A108067 A108068 A108069 this_sequence A108071 A108072 A108073
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KEYWORD
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nonn
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AUTHOR
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Gunnar Brinkmann (Gunnar.Brinkmann(AT)ugent.be), Jun 05 2005
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