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A019238 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite SGT = Sigma-2 [ Si64O128 ] . 4 R. 0

%I

%S 0,1,4,1,12,34,48,96,252,606,1288,3134,8270,19542,48694,129742,332080,

%T 854110,2249258,5877476,15356834,40458364,106629524,281136526,

%U 743677614,1971538978,5234641970,13926363260,37124297350

%N Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite SGT = Sigma-2 [ Si64O128 ] . 4 R.

%H <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a>, Structure Commission of the International Zeolite Association, revised 2017.

%H Georg Thimm, <a href="/thimm1.html">Cycle sequences of crystal structures</a>.

%H Georg Thimm, <a href="https://web.archive.org/web/20070702024520/http://www.adam.ntu.edu.sg/~mgeorg/">Personal website (archived)</a>.

%H Georg Thimm, <a href="https://d-nb.info/1001825144/34">A graph theoretical approach to the analysis, comparison, and enumeration of crystal structures</a>, Dissertation, Goethe University Frankfurt, Germany, 2008.

%H Georg Thimm and W. E. Klee, <a href="https://doi.org/10.1016/S0144-2449(97)00122-X">Zeolite cycle sequences</a>, Zeolites, 19(5-6) (1997), 422-424.

%K nonn,more

%O 3,3

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

%E a(20)-a(31) from _Sean A. Irvine_, Apr 18 2019

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Last modified July 17 14:44 EDT 2019. Contains 325106 sequences. (Running on oeis4.)