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A019034 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LTL = Linde Type L K6Na3[ Al9Si27O72 ] . 21 H2O. 0
2, 4, 26, 206, 1311, 7442, 44452, 281652, 1791706, 11399302, 73600602, 482406796, 3197748646, 21392739205, 144427720544 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

REFERENCES

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

LINKS

Table of n, a(n) for n=2..16.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A019019 A215882 A032328 * A091759 A262067 A193480

Adjacent sequences:  A019031 A019032 A019033 * A019035 A019036 A019037

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(11)-a(16) from Sean A. Irvine, Mar 26 2019

STATUS

approved

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Last modified April 5 00:43 EDT 2020. Contains 333238 sequences. (Running on oeis4.)