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A019093 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite CHI = Chiavennite Ca4Mn4 [ Be8Si20O52(OH)8 ] . 8 H2O. 0
0, 1, 1, 5, 2, 9, 7, 51, 54, 269, 383, 1360, 2299, 7403, 12992, 38816, 73818, 211988, 429604, 1191119, 2553132, 6896573, 15364578, 40672718, 93190816, 243089890, 569243543, 1469455978, 3500449951 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,4

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: A258503 A180726 A018856 * A329986 A097897 A063761

Adjacent sequences: A019090 A019091 A019092 * A019094 A019095 A019096

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(21)-a(31) from Sean A. Irvine, Apr 03 2019

STATUS

approved

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Last modified December 1 21:09 EST 2022. Contains 358484 sequences. (Running on oeis4.)