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%I #23 Jun 27 2019 10:03:48
%S 2,6,32,170,1038,6419,39528,260163,1718940,11576741,79305984,
%T 549330964,3845685592,27164175570,193374857264
%N Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite ABW = Li-A (Barrer and White).
%H International Zeolite Association, <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a>, Structure Commissionof the International Zeolite Association, revised 2017.
%H Sean A. Irvine, <a href="https://github.com/archmageirvine/joeis/blob/master/src/irvine/oeis/a018/A018940.java">Java program</a> (github).
%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
%O 2,1
%A Georg Thimm (mgeorg(AT)ntu.edu.sg)
%E a(11)-a(16) from _Sean A. Irvine_, Feb 27 2019