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A019234
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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 RUT = RUB-10 R4 [ B4Si32O72 ].
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0
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0, 2, 2, 3, 9, 15, 34, 94, 209, 504, 1306, 3073, 7654, 20149, 50226, 130772, 338518, 867558, 2257485, 5870934, 15278349, 40053657, 105184694, 276937693, 732156972, 1938948436, 5148099462, 13701809925, 36532372370
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OFFSET
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3,2
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LINKS
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Table of n, a(n) for n=3..31.
Database of Zeolite Structures, Structure Commission of the International Zeolite Association, revised 2017.
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: A322891 A275329 A021821 * A032172 A032103 A091044
Adjacent sequences: A019231 A019232 A019233 * A019235 A019236 A019237
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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 18 2019
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STATUS
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approved
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