A019028 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, 33, 203, 1050, 6300, 39142, 255212, 1698526, 11430659, 78113783, 540745743, 3778368007, 26622561517, 188999975971

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: A279461 A243324 A018952 * A280769 A127114 A138909

Adjacent sequences: A019025 A019026 A019027 * A019029 A019030 A019031

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