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A019188 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, 4, 6, 4, 14, 56, 94, 204, 638, 1508, 3414, 9176, 23232, 57600, 148550, 388584, 1001432, 2614820, 6905866, 18222128, 48202028, 128305452, 342215994, 913945432, 2447695760, 6569189860, 17654039564, 47523604660 (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: A278363 A123969 A255679 * A019244 A019189 A019190

Adjacent sequences:  A019185 A019186 A019187 * A019189 A019190 A019191

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

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Last modified June 19 04:44 EDT 2019. Contains 324217 sequences. (Running on oeis4.)