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A019132
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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, 32, 50, 84, 266, 604, 1342, 3456, 8652, 21422, 53630, 136442, 349820, 893522, 2311370, 6035468, 15753720, 41374708, 109201728, 288472024, 764514878, 2031609476, 5405413736, 14412672990, 38504505872
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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: A168239 A291068 A019131 * A351335 A021862 A199375
Adjacent sequences: A019129 A019130 A019131 * A019133 A019134 A019135
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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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