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A019030
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Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LIO = Liottite (Ca,Na2,K2)9 [ Al18Si18O72 ].
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0
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2, 7, 36, 234, 1096, 6515, 39238, 253162, 1671696, 11247639, 76975506, 533525387, 3728968546, 26270971848, 186444110128
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OFFSET
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2,1
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REFERENCES
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G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
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LINKS
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Table of n, a(n) for n=2..16.
G. Thimm, Cycle sequences of crystal structures
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CROSSREFS
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Sequence in context: A177258 A018997 A018954 * A212411 A119736 A353166
Adjacent sequences: A019027 A019028 A019029 * A019031 A019032 A019033
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KEYWORD
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nonn,more
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AUTHOR
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Georg Thimm (mgeorg(AT)ntu.edu.sg)
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EXTENSIONS
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a(11)-a(16) from Sean A. Irvine, Mar 25 2019
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STATUS
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approved
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