A019193 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MTW = ZSM-12 Nan[AlnSi28-nO56] starting with a T7 atom.

0, 0, 2, 8, 4, 20, 50, 124, 234, 708, 1548, 3862, 9234, 24723, 57884, 151618, 379592, 998060, 2518128, 6681575, 17316668, 46002619, 120672278, 322875444, 855590998, 2294409103, 6123605446, 16472081266, 44156377366

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: A104772 A264142 A088156 * A369178 A253884 A054788

Adjacent sequences: A019190 A019191 A019192 * A019194 A019195 A019196

Keyword

nonn,more

Author

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

Extensions

a(20)-a(31) from Sean A. Irvine, Apr 14 2019

Status

approved