A019027 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, 5, 30, 178, 1012, 6383, 40012, 260515, 1732626, 11625678, 79197940, 547338343, 3822189742, 26934038691, 191299411358

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: A367521 A371610 A209325 * A019031 A366455 A140786

Adjacent sequences: A019024 A019025 A019026 * A019028 A019029 A019030

Keyword

nonn,more

Author

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

Extensions

a(11)-a(16) from Sean A. Irvine, Mar 24 2019

Status

approved