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A019047 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite PAR = Partheite Ca8[ Al16Si16O60(OH)8 ] . 16 H2O. 0
2, 5, 26, 97, 456, 2366, 12705, 70044, 403306, 2356754, 13857372, 82010842, 489682421, 2950162164, 17919152421 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

REFERENCES

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

LINKS

Table of n, a(n) for n=2..16.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A008318 A204275 A160048 * A221679 A178390 A045903

Adjacent sequences: A019044 A019045 A019046 * A019048 A019049 A019050

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(11)-a(16) from Sean A. Irvine, Mar 27 2019

STATUS

approved

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Last modified February 6 20:45 EST 2023. Contains 360111 sequences. (Running on oeis4.)