A019058 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite PHI = Phillipsite K2(Ca,Na2)2[Al6Si10O32].12H2O starting at a T2 atom.

3, 6, 20, 132, 918, 5768, 34790, 215312, 1391722, 9200963, 61601919, 416696751, 2847867404, 19646977715, 136610674106

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: A019017 A019049 A019057 * A019050 A019051 A019042

Adjacent sequences: A019055 A019056 A019057 * A019059 A019060 A019061

Keyword

nonn,more

Author

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

Extensions

a(11)-a(16) from Sean A. Irvine, Mar 29 2019

Status

approved