login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A019246 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, 8, 4, 20, 68, 108, 256, 706, 1592, 3592, 9476, 23558, 57164, 146824, 382308, 979768, 2546128, 6726610, 17736940, 46885242, 124830600, 333145774, 889811108, 2383411046, 6398296760, 17195614290, 46283797072 (list; graph; refs; listen; history; text; internal format)
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: A055374 A275876 A255293 * A019192 A285624 A154912

Adjacent sequences:  A019243 A019244 A019245 * A019247 A019248 A019249

KEYWORD

nonn,more

AUTHOR

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

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 18 2019

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 24 10:02 EDT 2019. Contains 324323 sequences. (Running on oeis4.)