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A019193 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, 20, 50, 124, 234, 708, 1548, 3862, 9234, 24723, 57884, 151618, 379592, 998060, 2518128, 6681575, 17316668, 46002619, 120672278, 322875444, 855590998, 2294409103, 6123605446, 16472081266, 44156377366 (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: A104772 A264142 A088156 * A253884 A054788 A193851

Adjacent sequences:  A019190 A019191 A019192 * A019194 A019195 A019196

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 November 30 13:47 EST 2021. Contains 349420 sequences. (Running on oeis4.)