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A019187 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MTT = ZSM-23 Nan[ AlnSi24-nO48 ]. 0
0, 0, 2, 8, 6, 16, 58, 120, 252, 670, 1618, 3754, 9522, 23886, 59622, 151875, 392938, 1014709, 2648440, 6966849, 18374138, 48654893, 129490838, 345287097, 922517576, 2471493256, 6633768512, 17829837307, 48003235776 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,3

REFERENCES

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

LINKS

Table of n, a(n) for n=3..31.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A277249 A320262 A019186 * A019243 A246009 A100871

Adjacent sequences:  A019184 A019185 A019186 * A019188 A019189 A019190

KEYWORD

nonn,more

AUTHOR

Georg Thimm (mgeorg(AT)ntu.edu.sg)

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 13 2019

STATUS

approved

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Last modified June 18 14:52 EDT 2019. Contains 324213 sequences. (Running on oeis4.)