A019202 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite NES = NU-87 H4[ Al4Si64O136 ] . n H2O.

0, 0, 4, 4, 8, 30, 52, 103, 289, 707, 1486, 3513, 9229, 21679, 51373, 133607, 336395, 839750, 2185547, 5693422, 14775023, 38903387, 102970446, 272352898, 723149230, 1926009090, 5131018080, 13681082773, 36530345424

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: A004049 A264172 A019122 * A137717 A096252 A102369

Adjacent sequences: A019199 A019200 A019201 * A019203 A019204 A019205

Keyword

nonn,more

Author

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

Extensions

a(20)-a(31) from Sean A. Irvine, Apr 15 2019

Status

approved