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A019194 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MTW = ZSM-12 Nan[ AlnSi28-nO56 ]. 0
0, 0, 2, 8, 4, 26, 54, 126, 258, 770, 1568, 4030, 9560, 25381, 58328, 154310, 382514, 1002989, 2515622, 6687152, 17226920, 45770045, 119696108, 320324918, 846684628, 2271206729, 6053095938, 16284572288, 43613979158 (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: A193851 A276624 A193847 * A038214 A195923 A213456

Adjacent sequences:  A019191 A019192 A019193 * A019195 A019196 A019197

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 14 2019

STATUS

approved

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Last modified September 22 11:12 EDT 2021. Contains 347606 sequences. (Running on oeis4.)