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A019132 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite FER = Ferrierite Na2Mg2[ Al6Si30O72 ] . 18 H2O. 0
0, 0, 6, 5, 4, 32, 50, 84, 266, 604, 1342, 3456, 8652, 21422, 53630, 136442, 349820, 893522, 2311370, 6035468, 15753720, 41374708, 109201728, 288472024, 764514878, 2031609476, 5405413736, 14412672990, 38504505872 (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: A168239 A291068 A019131 * A021862 A199375 A244808

Adjacent sequences:  A019129 A019130 A019131 * A019133 A019134 A019135

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(21)-a(31) from Sean A. Irvine, Apr 07 2019

STATUS

approved

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Last modified November 21 14:18 EST 2019. Contains 329371 sequences. (Running on oeis4.)