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A121140
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Numbers of isomers of unbranched a-4-catapolyheptagons - see Brunvoll reference for precise definition.
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0
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OFFSET
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3,2
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REFERENCES
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J. Brunvoll, S. J. Cyvin and B. N. Cyvin, Isomer enumeration of polygonal systems..., J. Molec. Struct. (Theochem), 364 (1996), 1-13.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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