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A019259
Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VSV = VPI-7 Na26H6[ Zn16Si56O144 ] . 44 H2O.
0
0, 1, 4, 0, 0, 16, 24, 82, 240, 506, 1200, 2784, 6358, 15838, 40206, 102520, 265314, 682404, 1743868, 4471246, 11502628, 29694976, 77032860, 200484130, 522866760, 1366739182, 3579462164, 9390919826, 24686549192
OFFSET
3,3
LINKS
Database of Zeolite Structures, Structure Commission of the International Zeolite Association, revised 2017.
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.
CROSSREFS
Sequence in context: A062685 A192016 A028699 * A019218 A125762 A286216
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(21)-a(31) from Sean A. Irvine, Apr 20 2019
STATUS
approved