A019251 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VET = VPI-8 [ Si17O34 ].

0, 0, 4, 6, 7, 21, 46, 103, 260, 595, 1407, 3705, 9452, 23492, 60034, 155159, 400720, 1035245, 2690605, 7029599, 18420150, 48439234, 127951484, 339072130, 901525188, 2405217058, 6435364083, 17262812726, 46426074473

Offset

3,3

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: A102131 A102137 A102135 * A102134 A102133 A192121

Adjacent sequences: A019248 A019249 A019250 * A019252 A019253 A019254

Keyword

nonn,more

Author

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

Extensions

a(20)-a(31) from Sean A. Irvine, Apr 19 2019

Status

approved