A019237 - OEIS

%I #10 Apr 18 2019 07:45:16

%S 0,1,4,1,12,32,52,100,242,622,1318,3188,8382,19662,49006,130188,

%T 331642,850856,2239524,5850712,15287652,40300278,106291956,280451616,

%U 742278248,1968624658,5228549484,13912280278,37089229168

%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