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A019131 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite FER = Ferrierite Na2Mg2[ Al6Si30O72 ] . 18 H2O. 0
0, 0, 6, 5, 4, 30, 54, 94, 276, 596, 1366, 3584, 8576, 21201, 54406, 136804, 348928, 899188, 2319122, 6037956, 15785710, 41379139, 109030504, 288025149, 762520406, 2024506300, 5385791938, 14354896001, 38336874146 (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: A205651 A168239 A291068 * A019132 A351335 A021862

Adjacent sequences:  A019128 A019129 A019130 * A019132 A019133 A019134

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(21)-a(31) from Sean A. Irvine, Apr 07 2019

STATUS

approved

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Last modified August 17 05:07 EDT 2022. Contains 356184 sequences. (Running on oeis4.)