A019198 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MTW = ZSM-12 Nan[ AlnSi28-nO56 ].

0, 1, 2, 6, 6, 34, 48, 104, 256, 792, 1424, 3820, 9176, 24331, 55108, 148909, 365414, 962722, 2413464, 6452068, 16545824, 44105799, 115223284, 308754511, 814697208, 2187677942, 5824197548, 15672459560, 41939621146

Offset

3,3

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: A179215 A069260 A056603 * A155164 A155948 A368393

Adjacent sequences: A019195 A019196 A019197 * A019199 A019200 A019201

Keyword

nonn,more

Author

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

Extensions

a(20)-a(31) from Sean A. Irvine, Apr 15 2019

Status

approved