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A019023
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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 JBW = NaJ (Barrer and White) Na3 [ Al3Si3O12 ]. 1.5 H2O.
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0
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2, 8, 34, 162, 1080, 6383, 41775, 273618, 1839706, 12583014, 87182465, 611826394, 4336470628, 31017292666, 223585685378
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listen;
history;
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OFFSET
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2,1
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LINKS
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Table of n, a(n) for n=2..16.
Georg Thimm, Cycle sequences of crystal structures.
Georg Thimm, Personal website (archived).
Georg Thimm, A graph theoretical approach to the analysis, comparison, and enumeration of crystal structures, Dissertation, Goethe University Frankfurt, Germany, 2008.
Georg Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19(5-6) (1997), 422-424.
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CROSSREFS
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Sequence in context: A046649 A174808 A109972 * A030857 A030894 A030919
Adjacent sequences: A019020 A019021 A019022 * A019024 A019025 A019026
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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 23 2019
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STATUS
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approved
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