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A019239
Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite STI = Stilbite Na4Ca8[ Al20Si52O144 ] . 56 H2O.
0
0, 0, 4, 2, 12, 12, 64, 72, 220, 456, 1244, 2830, 7188, 17856, 45804, 113488, 295004, 747248, 1915456, 4932504, 12680644, 32787732, 84992148, 220635798, 575619804, 1502902660, 3936971432, 10334337920, 27175444212
OFFSET
3,3
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A143376 A111667 A323825 * A143944 A154345 A058095
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(20)-a(31) from Sean A. Irvine, Apr 18 2019
STATUS
approved