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A019030
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, 7, 36, 234, 1096, 6515, 39238, 253162, 1671696, 11247639, 76975506, 533525387, 3728968546, 26270971848, 186444110128
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A177258 A018997 A018954 * A212411 A119736 A353166
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