A019014 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite ERI = Erionite (Na2,Ca..)3.5 K2 [ Al9Si27O72 ] . 27 H2O.

2, 5, 26, 182, 1122, 6132, 35768, 222992, 1437244, 9398554, 62612956, 423908430, 2900198656, 19981497250, 138474355718

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: A371614 A334639 A072268 * A128595 A358715 A180749

Adjacent sequences: A019011 A019012 A019013 * A019015 A019016 A019017

Keyword

nonn,more

Author

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

Extensions

a(11)-a(16) from Sean A. Irvine, Mar 20 2019

Status

approved