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A019195
Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MTW = ZSM-12 Nan[ AlnSi28-nO56 ].
0
0, 0, 4, 6, 4, 22, 50, 118, 186, 704, 1420, 3678, 8470, 23668, 54792, 146181, 362476, 967161, 2432178, 6515652, 16829286, 44983125, 117818862, 316461687, 837468916, 2250992464, 6002841492, 16168909200, 43313559104
OFFSET
3,3
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A258836 A292387 A208540 * A019089 A173462 A019123
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(20)-a(31) from Sean A. Irvine, Apr 14 2019
STATUS
approved