A019227 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite RTH = RUB-13 [ B2Si30O64 ] . 2 R.

0, 2, 2, 1, 15, 19, 44, 105, 190, 479, 1136, 2631, 6503, 16479, 41246, 107230, 278800, 720865, 1878676, 4881992, 12670395, 32951537, 85774477, 223382189, 583220454, 1526078065, 3999815326, 10509905023, 27670430355

Offset

3,2

References

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

Links

Table of n, a(n) for n=3..31.

G. Thimm, Cycle sequences of crystal structures

Crossrefs

Sequence in context: A132986 A019112 A048660 * A163893 A199879 A006828

Adjacent sequences: A019224 A019225 A019226 * A019228 A019229 A019230

Keyword

nonn,more

Author

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

Extensions

a(20)-a(31) from Sean A. Irvine, Apr 17 2019

Status

approved