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%I #19 Apr 10 2018 08:26:36
%S 1,4,9,18,32,51,74,98,126,163,199,237,288,335,383,449,506,564,646,713,
%T 780,878,955,1032,1146,1232,1319,1450,1544,1641,1790,1892,1998,2165,
%U 2275,2391,2576,2693,2819,3023,3146,3282,3506,3635,3780,4024,4159,4314
%N Coordination sequence T1 for Zeolite Code WEI.
%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="/A009917/b009917.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 G.f.: (1 + 4*x + 10*x^2 + 20*x^3 + 33*x^4 + 49*x^5 + 62*x^6 + 67*x^7 + 62*x^8 + 51*x^9 + 35*x^10 + 20*x^11 + 8*x^12 - x^14 + 2*x^16 + 2*x^17) / ((1 - x)^3 * (1 + x) * (1 - x + x^2) * (1 + x^2) * (1 + x + x^2)^3). - _Colin Barker_, Dec 19 2015
%K nonn
%O 0,2
%A _Ralf W. Grosse-Kunstleve_
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