A019203 - OEIS

%I #12 Jan 25 2025 16:22:13

%S 0,0,4,6,6,32,72,120,316,804,1690,3896,10058,23656,54956,140334,

%T 351156,863336,2215008,5734726,14747386,38509606,101530298,267478776,

%U 707696286,1881659158,5006865152,13336830220,35597715792

%N Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite NES = NU-87 H4[Al4Si64O136].nH2O starting with a T2 atom.

%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(20)-a(31) from _Sean A. Irvine_, Apr 15 2019