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A019029
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, 6, 34, 221, 1100, 6711, 40137, 256224, 1690933, 11342919, 77426134, 536305675, 3750315161, 26444298871, 187832060390
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A009199 A052824 A371768 * A019032 A108424 A364394
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(11)-a(16) from Sean A. Irvine, Mar 25 2019
STATUS
approved