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A019106 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite DDR = Deca-dodecasil 3R [ Si120O240 ]q R. 0
0, 0, 5, 0, 2, 33, 23, 73, 339, 501, 1272, 4159, 8796, 21947, 60807, 146525, 370649, 977008, 2488685, 6451966, 16969213, 44362809, 116868000, 309416308, 819440761, 2179359337, 5810665522, 15513625276 (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..30.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A261850 A077496 A190913 * A051566 A051567 A261219

Adjacent sequences:  A019103 A019104 A019105 * A019107 A019108 A019109

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 May 30 15:21 EDT 2020. Contains 334726 sequences. (Running on oeis4.)