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A121849
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The spiral parameter epsilon for the icosahedral fullerenes C_n.
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0
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0, 5, 5, 11, 15, 30, 22, 30, 41, 38, 50, 75, 57, 59, 75, 91, 78, 85, 140, 112, 105
(list; graph; refs; listen; history; internal format)
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OFFSET
| 20,2
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REFERENCES
| P. W. Fowler and K. M. Rogers, "Spiral Codes and Goldberg Representations of Icosahedral Fullerenes and Octahedral Analogues", J. Chem. Inf. Comput. Sci., vol. 41 (2001) 108-111.
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EXAMPLE
| If n=80 then the parameter epsilon is 5.
If n=500 then the parameter epsilon is 50.
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CROSSREFS
| Sequence in context: A168300 A101203 A141244 * A164930 A173316 A098331
Adjacent sequences: A121846 A121847 A121848 * A121850 A121851 A121852
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KEYWORD
| nonn,uned
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Aug 30 2006
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