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A019027
Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LIO = Liottite (Ca,Na2,K2)9 [ Al18Si18O72 ].
0
2, 5, 30, 178, 1012, 6383, 40012, 260515, 1732626, 11625678, 79197940, 547338343, 3822189742, 26934038691, 191299411358
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A367521 A371610 A209325 * A019031 A366455 A140786
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