login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A008132 Coordination sequence T1 for Zeolite Code LOS. 1

%I #24 Apr 10 2018 08:26:35

%S 1,4,10,20,34,52,74,102,136,172,210,252,300,354,410,468,530,600,678,

%T 756,834,916,1006,1104,1202,1300,1402,1514,1636,1756,1874,1996,2128,

%U 2270,2410,2548,2690,2844,3010,3172,3330,3492,3666,3852,4034,4212,4394,4590

%N Coordination sequence T1 for Zeolite Code LOS.

%D W. M. Meier, D. H. Olson and Ch. Baerlocher, Atlas of Zeolite Structure Types, 4th Ed., Elsevier, 1996.

%H R. W. Grosse-Kunstleve, <a href="/A008132/b008132.txt">Table of n, a(n) for n = 0..1000</a>

%H R. W. Grosse-Kunstleve, <a href="/A005897/a005897.html">Coordination Sequences and Encyclopedia of Integer Sequences</a>

%H R. W. Grosse-Kunstleve, G. O. Brunner and N. J. A. Sloane, <a href="http://neilsloane.com/doc/ac96cs/">Algebraic Description of Coordination Sequences and Exact Topological Densities for Zeolites</a>, Acta Cryst., A52 (1996), pp. 879-889.

%H Sean A. Irvine, <a href="/A008000/a008000_1.pdf">Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane</a>

%H International Zeolite Association, <a href="http://www.iza-structure.org/databases/">Database of Zeolite Structures</a>

%F a(10*m+k) = 208*m^2 + b(k)*m + c(k), where b(k), c(k) are constants depending on k, 0<=k<10 (_N. J. A. Sloane_).

%F G.f.: (1 + x) * (1 + x + 3*x^2 + 3*x^3 + 5*x^4 + 4*x^5 + 6*x^6 + 6*x^7 + 6*x^8 + 4*x^9 + 5*x^10 + 3*x^11 + 3*x^12 + x^13 + x^14) / ((1 - x)^3 * (1 - x + x^2 - x^3 + x^4) * (1 + x + x^2 + x^3 + x^4)^2). - _Colin Barker_, Dec 19 2015

%K nonn,easy

%O 0,2

%A _Ralf W. Grosse-Kunstleve_

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 16 11:35 EDT 2024. Contains 371711 sequences. (Running on oeis4.)