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A019131
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Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite FER = Ferrierite Na2Mg2[ Al6Si30O72 ] . 18 H2O.
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0
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0, 0, 6, 5, 4, 30, 54, 94, 276, 596, 1366, 3584, 8576, 21201, 54406, 136804, 348928, 899188, 2319122, 6037956, 15785710, 41379139, 109030504, 288025149, 762520406, 2024506300, 5385791938, 14354896001, 38336874146
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OFFSET
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3,3
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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=3..31.
G. Thimm, Cycle sequences of crystal structures
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CROSSREFS
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Sequence in context: A205651 A168239 A291068 * A019132 A351335 A021862
Adjacent sequences: A019128 A019129 A019130 * A019132 A019133 A019134
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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(21)-a(31) from Sean A. Irvine, Apr 07 2019
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STATUS
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approved
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