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A019086 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BRE = Brewsterite (Sr,Ba)2 [ Al4Si12O32 ] . 10 H2O. 0
0, 2, 2, 5, 8, 25, 29, 98, 189, 554, 1136, 3243, 7008, 19592, 45249, 122606, 294165, 792112, 1954846, 5225025, 13231501, 35199804, 90471850, 240660287, 624850650, 1661864454, 4351560901, 11579823213 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

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: A095005 A209066 A208938 * A076949 A040009 A227527

Adjacent sequences:  A019083 A019084 A019085 * A019087 A019088 A019089

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(21)-a(30) from Sean A. Irvine, Apr 04 2019

STATUS

approved

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Last modified December 5 22:37 EST 2019. Contains 329782 sequences. (Running on oeis4.)