

A019077


Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BIK = Bikitaite Li2 [ Al2Si4O12 ] . 2 H2O.


0



0, 0, 4, 6, 4, 16, 46, 84, 224, 558, 1380, 3418, 9272, 23340, 58462, 153503, 404026, 1041448, 2725482, 7226277, 19073734, 50488500, 134468292, 358721980, 958690662, 2570501823, 6906337888, 18589047554
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OFFSET

3,3


REFERENCES

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


LINKS

Table of n, a(n) for n=3..30.
G. Thimm, Cycle sequences of crystal structures


CROSSREFS

Sequence in context: A143174 A032241 A065748 * A019245 A019191 A321355
Adjacent sequences: A019074 A019075 A019076 * A019078 A019079 A019080


KEYWORD

nonn,more


AUTHOR

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


EXTENSIONS

a(20)a(30) from Sean A. Irvine, Apr 02 2019


STATUS

approved



