A019204 - OEIS

%I #12 Jan 25 2025 16:22:34

%S 0,0,5,5,7,32,67,119,314,783,1647,3784,9819,22798,53086,136574,340934,

%T 838637,2163613,5611561,14448253,37842027,99967617,263651406,

%U 698535279,1859441868,4950806428,13193880214,35230550532

%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 T3 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