A019108 - OEIS

%I #10 Apr 05 2019 17:47:34

%S 0,0,6,0,3,39,27,87,402,546,1332,4503,9141,22260,62355,147339,366447,

%T 965064,2437173,6269181,16472895,42971868,112948683,299077797,

%U 792147474,2106620565,5620012437,15013246413,40201647126

%N Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite DDR = Deca-dodecasil 3R [ Si120O240 ]q R.

%D G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

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

%K nonn,more

%O 3,3

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

%E a(21)-a(31) from _Sean A. Irvine_, Apr 05 2019