A018968 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AFT = AlPO4-52 starting with a T2 atom.

3, 7, 41, 184, 802, 4763, 30995, 198601, 1284125, 8389360, 55733690, 375706748, 2554513453, 17469639322, 120124786243

Offset

2,1

References

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

Links

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

G. Thimm, Cycle sequences of crystal structures

Crossrefs

Sequence in context: A333649 A089656 A018970 * A018969 A018971 A006383

Adjacent sequences: A018965 A018966 A018967 * A018969 A018970 A018971

Keyword

nonn,more,changed

Author

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

Extensions

a(11)-a(16) from Sean A. Irvine, Mar 09 2019

Status

approved