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A018987
Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite ATS = MAPO-36 H[ MgAl11P12O48 ].
0
2, 8, 52, 216, 1184, 6715, 38070, 236911, 1513556, 10014921, 68149007, 471361443, 3294708504, 23177870025, 163776870956
OFFSET
2,1
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A249747 A191480 A013555 * A030518 A123188 A027329
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(11)-a(16) from Sean A. Irvine, Mar 14 2019
STATUS
approved