A019136 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite HEU = Heulandite Ca4[Al8Si28O72].24H2O starting with a T3 atom.

0, 1, 4, 3, 13, 26, 23, 119, 235, 452, 1323, 3119, 7328, 19372, 46983, 119070, 303686, 769310, 1975420, 5113550, 13189920, 34395096, 89652338, 234687224, 615882224, 1620322823, 4269645213, 11281746619, 29843058869

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: A376993 A105200 A088933 * A298057 A140884 A351992

Adjacent sequences: A019133 A019134 A019135 * A019137 A019138 A019139

Keyword

nonn,more

Author

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

Extensions

a(20)-a(31) from Sean A. Irvine, Apr 08 2019

Status

approved