A019222 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite RSN = RUB-17 K4Na12 [ Zn8Si28O72 ]. 18 H2O.

2, 0, 0, 0, 0, 0, 26, 86, 228, 424, 1040, 2192, 5632, 13820, 37462, 94070, 244632, 612400, 1576680, 3994116, 10322016, 26512176, 69006942, 178963650, 467609932, 1219902008, 3198150306, 8381973582, 22048632000

Offset

3,1

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: A336104 A110981 A019261 * A019141 A230686 A341001

Adjacent sequences: A019219 A019220 A019221 * A019223 A019224 A019225

Keyword

nonn,more

Author

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

Extensions

a(21)-a(31) from Sean A. Irvine, Apr 17 2019

Status

approved