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A018975
Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AHT = AlPO4-H2 [ Al6P6O12 ] . 8H2 O.
0
2, 16, 32, 220, 872, 5886, 35346, 242546, 1605278, 10937906, 74343368, 513111965, 3568652234, 25077325748, 177535832330
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A344016 A279034 A120069 * A012696 A012392 A009819
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(11)-a(16) from Sean A. Irvine, Mar 10 2019
STATUS
approved