A019029 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LIO = Liottite (Ca,Na2,K2)9 [ Al18Si18O72 ].

2, 6, 34, 221, 1100, 6711, 40137, 256224, 1690933, 11342919, 77426134, 536305675, 3750315161, 26444298871, 187832060390

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: A009199 A052824 A371768 * A019032 A108424 A364394

Adjacent sequences: A019026 A019027 A019028 * A019030 A019031 A019032

Keyword

nonn,more

Author

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

Extensions

a(11)-a(16) from Sean A. Irvine, Mar 25 2019

Status

approved