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A019218 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite RSN = RUB-17 K4Na12 [ Zn8Si28O72 ] . 18 H2O. 0
0, 1, 4, 0, 0, 16, 24, 82, 242, 504, 1182, 2780, 6366, 15800, 40288, 102822, 264760, 679734, 1737684, 4455024, 11464890, 29618130, 76818882, 199824594, 520967398, 1361311326, 3564247968, 9349866338, 24574474322 (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: A192016 A028699 A019259 * A125762 A286216 A280727

Adjacent sequences:  A019215 A019216 A019217 * A019219 A019220 A019221

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(21)-a(31) from Sean A. Irvine, Apr 17 2019

STATUS

approved

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Last modified August 17 03:53 EDT 2022. Contains 356184 sequences. (Running on oeis4.)