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A019161 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, 30, 59, 110, 307, 702, 1467, 3540, 8881, 21238, 51411, 131267, 336955, 858389, 2231616, 5873842, 15436593, 40783461, 108380373, 288172019, 767283935, 2047446019, 5468198458, 14615722327, 39109795012 (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: A227553 A326829 A108270 * A291718 A137026 A090938

Adjacent sequences:  A019158 A019159 A019160 * A019162 A019163 A019164

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 December 10 00:54 EST 2019. Contains 329885 sequences. (Running on oeis4.)