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A019081 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BOG = Boggsite Na4Ca7 [ Al18Si78O192 ] . 74 H2O. 0
0, 1, 4, 4, 13, 26, 45, 133, 235, 548, 1310, 2895, 6935, 16903, 41364, 105473, 267593, 686181, 1796846, 4688454, 12294633, 32415703, 85467627, 225538991, 596465385, 1576777644, 4174786951, 11055046337 (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..30.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A005301 A099924 A147824 * A219454 A059443 A241250

Adjacent sequences:  A019078 A019079 A019080 * A019082 A019083 A019084

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(30) from Sean A. Irvine, Apr 03 2019

STATUS

approved

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Last modified October 21 22:47 EDT 2021. Contains 348160 sequences. (Running on oeis4.)