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A121847 The spiral parameter alpha for the icosahedral fullerenes C_n. 0
0, 5, 6, 15, 17, 31, 30, 33, 51, 50, 54, 77, 76, 75, 80, 107, 106, 105, 143, 142, 111 (list; graph; refs; listen; history; text; internal format)
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.
LINKS
EXAMPLE
If n=80 then alpha is 6.
If n=500 then alpha is 54.
CROSSREFS
Sequence in context: A160109 A351172 A191213 * A030533 A329634 A227066
KEYWORD
nonn,uned
AUTHOR
Parthasarathy Nambi, Aug 29 2006
STATUS
approved

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Last modified March 28 07:48 EDT 2024. Contains 371235 sequences. (Running on oeis4.)