A019021 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite GOO.

3, 7, 30, 140, 908, 5586, 35137, 226799, 1489781, 9920319, 67048694, 458884910, 3172523046, 22127603235, 155529572271

Offset

2,1

Links

Table of n, a(n) for n=2..16.

IZA-SC, Framework Type GOO, Database of Zeolite Structures.

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

Georg Thimm, GOO, Cycle Sequences of Zeolite Structures [archived].

G. Thimm, Cycle sequences of crystal structures

Crossrefs

Cf. A033194, A019020, A019019.

Sequence in context: A098644 A182322 A132105 * A110505 A354518 A009128

Adjacent sequences: A019018 A019019 A019020 * A019022 A019023 A019024

Keyword

nonn,more

Author

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

Extensions

a(11)-a(16) from Sean A. Irvine, Mar 23 2019

Name clarified by Andrey Zabolotskiy, Apr 17 2024

Status

approved