A019145 - OEIS

%I #10 Apr 10 2019 04:42:08

%S 0,3,0,6,12,18,42,69,213,522,1290,3021,7515,16005,39396,96558,216372,

%T 569388,1339923,3502602,8844471,22861068,59433465,154115181,402895542,

%U 1049644224,2741689647,7161115410,18689797119,48858332049

%N Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MEI = ZSM-18 Nan [ AlnSi34-nO68 ] . 28 H2O (n=2.1-5.7).

%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 3,2

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

%E a(21)-a(32) from _Sean A. Irvine_, Apr 09 2019