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%I #13 Jan 18 2025 14:26:42
%S 0,1,4,4,12,21,36,81,215,498,1230,3024,7518,18716,47494,119818,305638,
%T 781495,2015124,5200150,13532475,35199561,92135477,241342171,
%U 634477759,1670301161,4410053106,11656356800,30891424869
%N Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BRE = Brewsterite (Sr,Ba)2[Al4Si12O32].10H2O starting with a T4 atom.
%D G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19 (1997), pp. 422-424.
%H G. Thimm, <a href="/thimm1.html">Cycle sequences of crystal structures</a>
%K nonn,more,changed
%O 3,3
%A Georg Thimm (mgeorg(AT)ntu.edu.sg)
%E a(20)-a(31) from _Sean A. Irvine_, Apr 03 2019