A019229 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].2R starting with a T4 atom.

0, 2, 3, 3, 21, 30, 59, 110, 242, 572, 1153, 2849, 6533, 15911, 40206, 101346, 262483, 677088, 1753592, 4551703, 11797630, 30695980, 79962351, 208257979, 544082214, 1424031328, 3733666550, 9813530258, 25837616418

Offset

3,2

Links

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

Database of Zeolite Structures, Structure Commission of the International Zeolite Association, revised 2017.

Georg Thimm, Cycle sequences of crystal structures.

Georg Thimm, Personal website (archived).

Georg Thimm, A graph theoretical approach to the analysis, comparison, and enumeration of crystal structures, Dissertation, Goethe University Frankfurt, Germany, 2008.

Georg Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19(5-6) (1997), 422-424.

Crossrefs

Sequence in context: A057676 A062168 A296836 * A135353 A217705 A084956

Adjacent sequences: A019226 A019227 A019228 * A019230 A019231 A019232

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