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A018981 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AST = AlPO4-16 [ Al20P20O80 ] .4 R . 16 H2O. 0

%I #14 Jun 26 2019 18:02:40

%S 0,6,24,192,924,6432,39096,251712,1601904,10498200,69861552,472556352,

%T 3225921672,22211011704,154049303808

%N Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AST = AlPO4-16 [ Al20P20O80 ] .4 R . 16 H2O.

%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 12 2019

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)