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, 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

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: A104537 A128018 A138230 * 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