A019208 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite NES = NU-87 H4[ Al4Si64O136 ] . n H2O.

0, 1, 5, 4, 7, 28, 56, 89, 277, 719, 1443, 3469, 9359, 21650, 51596, 135156, 337846, 839063, 2173763, 5618513, 14449877, 37718711, 99072109, 260146125, 686218682, 1818312665, 4824702901, 12822871344, 34160124755

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: A136118 A105665 A019129 * A051553 A203139 A184085

Adjacent sequences: A019205 A019206 A019207 * A019209 A019210 A019211

Keyword

nonn,more

Author

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

Extensions

a(21)-a(31) from Sean A. Irvine, Apr 15 2019

Status

approved