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A019011
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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 EAB = TMA-E (Aiello and Barrer)(1) (Me4N)2Na7[ Al9Si27O7.
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0
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3, 7, 44, 197, 939, 5008, 31709, 215050, 1428402, 9455961, 63039275, 425182725, 2901153974, 20005580637, 139245680285
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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: A253576 A354428 A328690 * A036842 A267844 A359046
Adjacent sequences: A019008 A019009 A019010 * A019012 A019013 A019014
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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 19 2019
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STATUS
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approved
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