

A018992


Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AWW = AlPO422 [ Al24P24O96 ] . 2 R.


0



2, 4, 39, 208, 981, 5909, 37421, 241885, 1610770, 10829938, 73483649, 503899769, 3486438851, 24325367528, 171075635301
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OFFSET

2,1


REFERENCES

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422424, 1997.


LINKS

Table of n, a(n) for n=2..16.
G. Thimm, Cycle sequences of crystal structures


CROSSREFS

Sequence in context: A009835 A009834 A106127 * A098625 A057777 A139735
Adjacent sequences: A018989 A018990 A018991 * A018993 A018994 A018995


KEYWORD

nonn,more


AUTHOR

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


EXTENSIONS

a(11)a(16) from Sean A. Irvine, Mar 17 2019


STATUS

approved



