A019072 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BEA = Beta Nan [ AlnSi64-n O128 ] with n 7.

0, 2, 2, 4, 14, 30, 46, 141, 313, 642, 1586, 3566, 7827, 18673, 43608, 101775, 248214, 606621, 1511160, 3855263, 9905069, 25825329, 67971371, 179759191, 477647229, 1271389790, 3384877996, 9010240169, 23958321608

Offset

3,2

References

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

Links

Table of n, a(n) for n=3..31.

G. Thimm, Cycle sequences of crystal structures

Crossrefs

Sequence in context: A153962 A261980 A153953 * A019073 A153959 A308847

Adjacent sequences: A019069 A019070 A019071 * A019073 A019074 A019075

Keyword

nonn,more

Author

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

Extensions

a(20)-a(31) from Sean A. Irvine, Apr 02 2019

Status

approved