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A019236 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite SGT = Sigma-2 [ Si64O128 ] . 4 R. 0
0, 1, 4, 1, 12, 30, 54, 102, 228, 618, 1312, 3096, 8292, 19498, 48300, 129176, 329812, 848460, 2237742, 5845522, 15289132, 40319114, 106323626, 280556746, 742462698, 1968747002, 5228567482, 13911482218, 37084483104 (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: A157398 A306299 A089503 * A019237 A019238 A299523

Adjacent sequences:  A019233 A019234 A019235 * A019237 A019238 A019239

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 18 2019

STATUS

approved

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Last modified July 21 06:53 EDT 2019. Contains 325192 sequences. (Running on oeis4.)