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A121849 The spiral parameter epsilon for the icosahedral fullerenes C_n. +0
1
0, 5, 5, 11, 15, 30, 22, 30, 41, 38, 50, 75, 57, 59, 75, 91, 78, 85, 140, 112, 105 (list; graph; listen)
OFFSET

20,2

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.

EXAMPLE

If n=80 then the parameter epsilon is 5.

If n=500 then the parameter epsilon is 50.

CROSSREFS

Sequence in context: A143427 A101203 A141244 this_sequence A164930 A098331 A061391

Adjacent sequences: A121846 A121847 A121848 this_sequence A121850 A121851 A121852

KEYWORD

nonn,uned

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Aug 30 2006

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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