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A019025 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LEV = Levyne Ca9 [ Al18Si36O108 ] . 50 H2O. 0
2, 4, 22, 154, 924, 5744, 37530, 241091, 1545066, 10150409, 68167608, 463298678, 3178429166, 21994032666, 153340266738 (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: A110130 A259116 A283322 * A264729 A192332 A324603

Adjacent sequences:  A019022 A019023 A019024 * A019026 A019027 A019028

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(11)-a(16) from Sean A. Irvine, Mar 25 2019

STATUS

approved

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Last modified January 27 02:46 EST 2020. Contains 331291 sequences. (Running on oeis4.)