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A019248 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VET = VPI-8 [ Si17O34 ]. 0
0, 0, 3, 6, 7, 21, 44, 107, 274, 655, 1484, 3919, 10003, 24765, 62528, 161536, 413954, 1065515, 2759833, 7192471, 18790104, 49343301, 130153728, 344564793, 915441196, 2441445940, 6530187540, 17514820829, 47100909261 (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: A106357 A088101 A050867 * A284042 A288295 A288804

Adjacent sequences:  A019245 A019246 A019247 * A019249 A019250 A019251

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 19 2019

STATUS

approved

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Last modified June 25 12:55 EDT 2019. Contains 324352 sequences. (Running on oeis4.)