A019107 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite DDR = Deca-dodecasil 3R [ Si120O240 ]q R.

0, 0, 5, 1, 0, 34, 33, 70, 340, 555, 1267, 4177, 9172, 22268, 61267, 148816, 373087, 979481, 2497852, 6458920, 16944701, 44254705, 116467231, 308050640, 815396135, 2168416923, 5781210933, 15435733397, 41328339878

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: A123260 A019113 A289620 * A019183 A019156 A360176

Adjacent sequences: A019104 A019105 A019106 * A019108 A019109 A019110

Keyword

nonn,more

Author

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

Extensions

a(21)-a(31) from Sean A. Irvine, Apr 05 2019

Status

approved