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”).

A019226
Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite RTH = RUB-13 [ B2Si30O64 ] . 2 R.
0
0, 1, 2, 3, 13, 21, 48, 92, 239, 568, 1162, 2995, 7014, 17505, 44314, 111919, 291041, 747987, 1937201, 5030061, 13021853, 33899044, 88276597, 229956152, 600873033, 1572753949, 4124708368, 10842119417, 28553168700
OFFSET
3,3
REFERENCES
G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.
CROSSREFS
Sequence in context: A037392 A136341 A139563 * A138699 A341713 A077248
KEYWORD
nonn,more
AUTHOR
Georg Thimm (mgeorg(AT)ntu.edu.sg)
EXTENSIONS
a(20)-a(31) from Sean A. Irvine, Apr 17 2019
STATUS
approved