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A018953
Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AFG = Afghanite (Na2,Ca,K2)12 [ Al24Si24O96 ].
0
2, 6, 34, 217, 1092, 6616, 39640, 254593, 1678272, 11264666, 77021822, 533716317, 3728816166, 26255378070, 186191393010
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A279609 A253778 A346189 * A009199 A052824 A371768
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(11)-a(16) from Sean A. Irvine, Mar 04 2019
STATUS
approved