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A019026
Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LEV = Levyne Ca9 [ Al18Si36O108 ] . 50 H2O.
0
3, 7, 43, 198, 926, 5199, 33723, 219611, 1410817, 9288667, 62482152, 424683884, 2910675140, 20114908457, 140063531023
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A303160 A258435 A074268 * A181729 A162455 A143684
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(11)-a(16) from Sean A. Irvine, Mar 24 2019
STATUS
approved