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A018952
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, 33, 202, 1042, 6206, 38572, 252894, 1685564, 11367911, 77773792, 538226451, 3755728475, 26423241960, 187316098603
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A162429 A279461 A243324 * A019028 A280769 A127114
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(11)-a(16) from Sean A. Irvine, Mar 03 2019
STATUS
approved