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A019200 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite NAT = Natrolite Na16[ Al16Si24O80 ] . 16 H2O. 0
0, 4, 0, 2, 0, 12, 8, 124, 124, 568, 938, 2504, 5920, 15036, 38622, 94718, 244900, 618326, 1536234, 4099758, 9977262, 26982442, 66352956, 179514926, 447677038, 1206219808, 3053871710, 8159293202, 20968150036, 55708043068 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

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..32.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A272198 A272203 A324815 * A324820 A337996 A087604

Adjacent sequences:  A019197 A019198 A019199 * A019201 A019202 A019203

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(21)-a(32) from Sean A. Irvine, Apr 15 2019

STATUS

approved

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Last modified May 16 09:28 EDT 2021. Contains 343940 sequences. (Running on oeis4.)