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A121848
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The spiral parameter gamma for the icosahedral fullerenes C_n.
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0
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0, 2, 11, 18, 32, 25, 44, 63, 56, 80, 104, 68, 97, 126, 155, 114, 148, 182, 131, 170, 216
(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 gamma is 11.
If n=500 then gamma is 104.
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CROSSREFS
| Sequence in context: A106982 A043461 A030551 * A074926 A066144 A102343
Adjacent sequences: A121845 A121846 A121847 * A121849 A121850 A121851
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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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