A018974 - OEIS

%I #10 Mar 11 2019 20:14:57

%S 1,13,28,215,902,6262,37975,261155,1720431,11704764,79439672,

%T 548760055,3820066453,26878448816,190482853291

%N Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AHT = AlPO4-H2 [ Al6P6O12 ] . 8H2 O.

%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 11 2019