login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A121849 The spiral parameter epsilon for the icosahedral fullerenes C_n. 0
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)
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: A168300 A101203 A141244 * A164930 A173316 A098331

Adjacent sequences:  A121846 A121847 A121848 * A121850 A121851 A121852

KEYWORD

nonn,uned

AUTHOR

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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 18 00:14 EST 2012. Contains 206085 sequences.