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A019012 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite EDI = Edingtonite Ba2 [ Al4Si6O20 ] . 8 H2O. 1
4, 2, 14, 160, 900, 4886, 30682, 192510, 1224950, 7984322, 52634452, 351366472, 2369756074, 16119996332, 110532009438 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,1
LINKS
International Zeolite Association, Database of Zeolite Structures, Structure Commissionof 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: A087957 A360084 A019061 * A154333 A185130 A261870
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(11)-a(16) from Sean A. Irvine, Mar 20 2019
STATUS
approved

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Last modified May 26 16:14 EDT 2024. Contains 372835 sequences. (Running on oeis4.)