A019203 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, 6, 6, 32, 72, 120, 316, 804, 1690, 3896, 10058, 23656, 54956, 140334, 351156, 863336, 2215008, 5734726, 14747386, 38509606, 101530298, 267478776, 707696286, 1881659158, 5006865152, 13336830220, 35597715792

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: A145692 A295512 A064214 * A365084 A082237 A348958

Adjacent sequences: A019200 A019201 A019202 * A019204 A019205 A019206

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