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A019160 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MFI = ZSM-5 Nan[ AlnSi96-nO192 ]. 0
0, 0, 4, 6, 8, 24, 55, 122, 284, 640, 1499, 3523, 8555, 21207, 52142, 131769, 340170, 873080, 2262490, 5947043, 15649920, 41289048, 109539183, 291179345, 774884877, 2066087278, 5516257587, 14741851755, 39438287815 (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: A063719 A272862 A106366 * A126233 A059889 A058011

Adjacent sequences:  A019157 A019158 A019159 * A019161 A019162 A019163

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 10 2019

STATUS

approved

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Last modified March 4 07:02 EST 2021. Contains 341779 sequences. (Running on oeis4.)