A019134 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 ] . 24 H2O.

0, 0, 6, 0, 16, 26, 26, 118, 264, 426, 1428, 3070, 7568, 19538, 48146, 119503, 311736, 778568, 2018880, 5193999, 13463160, 34972876, 91446600, 238782050, 627761640, 1649356768, 4350037216, 11485510376, 30397116506

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: A278712 A057401 A308236 * A167298 A242838 A304878

Adjacent sequences: A019131 A019132 A019133 * A019135 A019136 A019137

Keyword

nonn,more

Author

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

Extensions

a(20)-a(31) from Sean A. Irvine, Apr 07 2019

Status

approved