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A019023
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.
0
2, 8, 34, 162, 1080, 6383, 41775, 273618, 1839706, 12583014, 87182465, 611826394, 4336470628, 31017292666, 223585685378
OFFSET
2,1
LINKS
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: A046649 A174808 A109972 * A343523 A030857 A030894
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(11)-a(16) from Sean A. Irvine, Mar 23 2019
STATUS
approved