%I #11 Apr 10 2018 08:26:36
%S 1,4,11,20,32,53,77,100,135,166,199,252,303,338,397,467,521,590,662,
%T 731,817,902,991,1077,1165,1277,1382,1490,1588,1706,1847,1951,2091,
%U 2219,2337,2509,2638,2791,2940,3073,3277,3427,3593,3755,3927,4153,4284
%N Coordination sequence T1 for Zeolite Code IFR.
%H R. W. Grosse-Kunstleve, <a href="/A024982/b024982.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 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>
%K nonn
%O 0,2
%A _Ralf W. Grosse-Kunstleve_