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A000935
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Number of free planar polyenoids with 2n nodes and symmetry point group C_{2h}.
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1
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OFFSET
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1,3
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LINKS
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Table of n, a(n) for n=1..10.
S. J. Cyvin, J. Brunvoll, E. Brendsdal, B. N. Cyvin and E. K. Lloyd, Enumeration of polyene hydrocarbons: a complete mathematical solution, J. Chem. Inf. Comput. Sci., 35 (1995) 743-751.
S. J. Cyvin, J. Brunvoll, E. Brendsdal, B. N. Cyvin and E. K. Lloyd, Enumeration of polyene hydrocarbons: a complete mathematical solution, J. Chem. Inf. Comput. Sci., 35 (1995) 743-751. [Annotated scanned copy]
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CROSSREFS
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Sequence in context: A083379 A216246 A322202 * A035071 A055891 A122877
Adjacent sequences: A000932 A000933 A000934 * A000936 A000937 A000938
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KEYWORD
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nonn,more
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AUTHOR
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E. K. Lloyd (E.K.Lloyd(AT)soton.ac.uk)
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EXTENSIONS
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a(8)-a(10) and improved title by Sean A. Irvine, Oct 15 2015
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STATUS
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approved
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