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A019243 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite TON = Theta-1 Nan[ AlnSi24-nO48 ]. 0
0, 0, 2, 8, 6, 16, 58, 120, 254, 668, 1616, 3750, 9540, 23832, 59628, 151807, 392948, 1014372, 2648282, 6968089, 18372218, 48650007, 129494286, 345288143, 922430248, 2471294134, 6633522886, 17828876698, 47998957546 (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: A320262 A019186 A019187 * A246009 A100871 A111860

Adjacent sequences:  A019240 A019241 A019242 * A019244 A019245 A019246

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 18 2019

STATUS

approved

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Last modified May 23 20:23 EDT 2019. Contains 323528 sequences. (Running on oeis4.)