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A019190 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, 60, 90, 216, 630, 1496, 3382, 9144, 22952, 57168, 147708, 386212, 997816, 2608600, 6894104, 18203272, 48193590, 128294936, 342193010, 913922604, 2447360528, 6566442000, 17642534388, 47481137536 (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: A019188 A019244 A019189 * A143174 A032241 A065748

Adjacent sequences:  A019187 A019188 A019189 * A019191 A019192 A019193

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(21)-a(31) from Sean A. Irvine, Apr 14 2019

STATUS

approved

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Last modified October 21 14:30 EDT 2019. Contains 328301 sequences. (Running on oeis4.)