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A019220 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
1, 1, 0, 2, 0, 10, 20, 100, 206, 528, 1008, 2594, 5618, 15246, 37564, 100604, 249758, 651804, 1633514, 4233788, 10771236, 28036370, 72289144, 188906208, 490896946, 1286263486, 3361239986, 8831282324, 23185222496 (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: A070681 A228539 A061189 * A019140 A303490 A303387

Adjacent sequences:  A019217 A019218 A019219 * A019221 A019222 A019223

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 17 2019

STATUS

approved

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Last modified October 19 02:41 EDT 2019. Contains 328211 sequences. (Running on oeis4.)