A019250 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, 4, 7, 30, 50, 106, 320, 734, 1606, 4238, 10735, 25992, 65243, 166303, 420964, 1075250, 2768641, 7162869, 18614509, 48703066, 128092492, 338243964, 897092356, 2389751405, 6386698936, 17120652598, 46028927058

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: A321661 A183492 A019159 * A200509 A103551 A107493

Adjacent sequences: A019247 A019248 A019249 * A019251 A019252 A019253

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