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A019136 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite HEU = Heulandite Ca4 [ Al8Si28O72 ] . 24 H2O. 0
0, 1, 4, 3, 13, 26, 23, 119, 235, 452, 1323, 3119, 7328, 19372, 46983, 119070, 303686, 769310, 1975420, 5113550, 13189920, 34395096, 89652338, 234687224, 615882224, 1620322823, 4269645213, 11281746619, 29843058869 (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: A056477 A105200 A088933 * A298057 A140884 A351992

Adjacent sequences:  A019133 A019134 A019135 * A019137 A019138 A019139

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 08 2019

STATUS

approved

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Last modified May 18 21:30 EDT 2022. Contains 353825 sequences. (Running on oeis4.)