A019236 - OEIS

%I #9 Apr 18 2019 07:22:36

%S 0,1,4,1,12,30,54,102,228,618,1312,3096,8292,19498,48300,129176,

%T 329812,848460,2237742,5845522,15289132,40319114,106323626,280556746,

%U 742462698,1968747002,5228567482,13911482218,37084483104

%N Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite SGT = Sigma-2 [ Si64O128 ] . 4 R.

%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 18 2019