A019144 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MEI = ZSM-18 Nan[AlnSi34-nO68].28H2O (n=2.1-5.7) starting with a T2 atom.

0, 2, 2, 7, 13, 25, 42, 81, 193, 454, 1041, 2502, 6242, 13807, 35326, 87295, 209812, 548575, 1343566, 3489028, 8907422, 22985251, 59673055, 154469560, 402551592, 1046972388, 2729730656, 7118291151, 18566002813

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..31.

G. Thimm, Cycle sequences of crystal structures

Crossrefs

Sequence in context: A303588 A366583 A366584 * A362318 A049953 A364313

Adjacent sequences: A019141 A019142 A019143 * A019145 A019146 A019147

Keyword

nonn,more,changed

Author

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

Extensions

a(21)-a(31) from Sean A. Irvine, Apr 09 2019

Status

approved