A019025 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LEV = Levyne Ca9 [ Al18Si36O108 ] . 50 H2O.

2, 4, 22, 154, 924, 5744, 37530, 241091, 1545066, 10150409, 68167608, 463298678, 3178429166, 21994032666, 153340266738

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: A110130 A259116 A283322 * A264729 A339781 A192332

Adjacent sequences: A019022 A019023 A019024 * A019026 A019027 A019028

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