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A019235 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite SGT = Sigma-2 [ Si64O128 ] . 4 R. 0
0, 0, 3, 3, 6, 24, 44, 77, 235, 620, 1321, 3238, 8791, 21178, 52662, 140814, 362458, 927614, 2437267, 6376348, 16629349, 43733016, 115226994, 303620616, 802665619, 2127803992, 5649706174, 15031089644, 40077352795 (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: A052560 A147836 A284710 * A222020 A230253 A259970

Adjacent sequences:  A019232 A019233 A019234 * A019236 A019237 A019238

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 July 20 14:34 EDT 2019. Contains 325185 sequences. (Running on oeis4.)