A019218 - OEIS

%I #14 Jan 17 2025 15:03:45

%S 0,1,4,0,0,16,24,82,242,504,1182,2780,6366,15800,40288,102822,264760,

%T 679734,1737684,4455024,11464890,29618130,76818882,199824594,

%U 520967398,1361311326,3564247968,9349866338,24574474322

%N Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite RSN = RUB-17 K4Na12[Zn8Si28O72].18H2O starting with a T4 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(21)-a(31) from _Sean A. Irvine_, Apr 17 2019