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A019145 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MEI = ZSM-18 Nan [ AlnSi34-nO68 ] . 28 H2O (n=2.1-5.7). 0
0, 3, 0, 6, 12, 18, 42, 69, 213, 522, 1290, 3021, 7515, 16005, 39396, 96558, 216372, 569388, 1339923, 3502602, 8844471, 22861068, 59433465, 154115181, 402895542, 1049644224, 2741689647, 7161115410, 18689797119, 48858332049 (list; graph; refs; listen; history; text; internal format)
OFFSET
3,2
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
LINKS
CROSSREFS
Sequence in context: A077911 A057381 A144091 * A059684 A270509 A083350
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(21)-a(32) from Sean A. Irvine, Apr 09 2019
STATUS
approved

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Last modified July 19 22:34 EDT 2024. Contains 374441 sequences. (Running on oeis4.)