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A019024 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite KFI = ZK-5 Na30 [ Al30Si66O192 ] . 98 H2O. 0
3, 7, 40, 185, 823, 4508, 30268, 201255, 1311400, 8625881, 57059059, 380393650, 2561920424, 17442035350, 119893594460 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..16.

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: A018967 A018942 A018943 * A135071 A096219 A128647

Adjacent sequences:  A019021 A019022 A019023 * A019025 A019026 A019027

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(11)-a(16) from Sean A. Irvine, Mar 23 2019

STATUS

approved

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Last modified January 28 06:29 EST 2020. Contains 331317 sequences. (Running on oeis4.)