login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A019245
Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite TON = Theta-1 Nan[ AlnSi24-nO48 ].
0
0, 0, 4, 6, 4, 16, 60, 88, 224, 650, 1480, 3372, 9208, 23126, 56988, 147778, 387084, 998552, 2604672, 6890844, 18189156, 48123802, 128110692, 341753792, 912635960, 2443846624, 6557775236, 17619900692, 47420051376
OFFSET
3,3
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A065748 A346006 A019077 * A019191 A321355 A185145
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(21)-a(31) from Sean A. Irvine, Apr 18 2019
STATUS
approved