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A019228 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
0, 2, 3, 2, 21, 30, 56, 118, 231, 547, 1190, 2879, 6620, 16329, 40851, 102478, 265648, 682480, 1763038, 4578168, 11855495, 30829307, 80371950, 209352239, 547126557, 1432797726, 3757007598, 9877429162, 26009873890 (list; graph; refs; listen; history; text; internal format)
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: A101033 A136454 A025522 * A332734 A178134 A291489

Adjacent sequences:  A019225 A019226 A019227 * A019229 A019230 A019231

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

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Last modified December 8 03:17 EST 2021. Contains 349590 sequences. (Running on oeis4.)