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A019240 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite STI = Stilbite Na4Ca8[ Al20Si52O144 ] . 56 H2O. 0
0, 1, 2, 8, 8, 17, 36, 92, 150, 450, 994, 2538, 6376, 16262, 41688, 106612, 276186, 715846, 1842938, 4781414, 12339054, 32042540, 83067330, 215979914, 562923018, 1469848660, 3846114754, 10088441010, 26508267458 (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: A138230 A128018 A104537 * A269510 A093907 A116471

Adjacent sequences:  A019237 A019238 A019239 * A019241 A019242 A019243

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(21)-a(31) from Sean A. Irvine, Apr 18 2019

STATUS

approved

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Last modified May 26 04:46 EDT 2019. Contains 323579 sequences. (Running on oeis4.)