A018944 - OEIS

%I #17 Jun 27 2019 10:03:59

%S 0,11,28,266,1120,7778,44302,302172,1978796,13772325,95686208,

%T 678707616,4834506328,34756585127,251200375706

%N Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AEL = AlPO4-11 [ Al20P20O80 ].

%H International Zeolite Association, <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 2,2

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

%E a(11)-a(16) from _Sean A. Irvine_, Mar 01 2019