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A018961 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AFR = SAPO-40 [ Si7Al29P28O128 ] . 4 TPA . OH. 0
3, 11, 38, 171, 1016, 5660, 32322, 191194, 1184443, 7663094, 51297396, 349410472, 2398302135, 16510574038, 113831981156 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
LINKS
CROSSREFS
Sequence in context: A151468 A289989 A295263 * A178624 A027528 A192528
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(11)-a(16) from Sean A. Irvine, Mar 06 2019
STATUS
approved

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Last modified July 18 00:08 EDT 2024. Contains 374377 sequences. (Running on oeis4.)