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A019031
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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 LOS = Losod Na12 [ Al12Si12O48 ] . 18 H2O.
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0
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2, 5, 30, 180, 1028, 6563, 41042, 262143, 1737014, 11717093, 80135236, 555094742, 3884459568, 27420679509, 195037451422
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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: A180826 A209325 A019027 * A140786 A129951 A127298
Adjacent sequences: A019028 A019029 A019030 * A019032 A019033 A019034
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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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