A018957 - OEIS

%I #9 Mar 07 2019 12:43:39

%S 1,12,18,213,868,6811,40267,283800,1893581,13245343,92117860,

%T 651848468,4635906047,33287875110,240521004903

%N Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AFO = AlPO4-41 [ Al20P20O80 ].

%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 2,2

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

%E a(11)-a(16) from _Sean A. Irvine_, Mar 07 2019