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Search: id:A133998
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| A133998 |
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Number of isomers of the soccerball C_60H_n Buckminster fullerene. |
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+0
1
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| 1, 1, 37, 577, 8236, 91030, 835476, 6436782, 42650532, 246386091, 1256602779, 5711668755, 23322797475
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OFFSET
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0,3
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REFERENCES
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K. Balasubramanian, Combinatorics and Spectroscopy, Table 2.5; In: D. Bonchev and D. H. Rouvray, Chemical Group Theory, Gordon and Breach Publishers, 1995, ISBN 2-88449-034-5, pp. 37-70.
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FORMULA
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G.f.: sqrt{(1/60) [(1+x)^60 + 24(1+x^5)^12 + 20(1+x^3)^20 + 15(1+x^2)^30]}.
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CROSSREFS
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Sequence in context: A142764 A123035 A006303 this_sequence A056217 A105464 A140764
Adjacent sequences: A133995 A133996 A133997 this_sequence A133999 A134000 A134001
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KEYWORD
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nonn
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AUTHOR
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Thomas Wieder (thomas.wieder(AT)t-online.de), Jan 09 2008
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