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Coordination sequence T2 for Zeolite Code NAB.
1

%I #8 Sep 05 2022 19:47:00

%S 1,4,8,20,40,52,82,116,132,184,236,252,322,396,416,500,592,620,722,

%T 828,860,984,1108,1140,1282,1428,1464,1620,1784,1828,2002,2180,2228,

%U 2424,2620,2668,2882,3100,3152,3380,3616,3676,3922,4172,4236,4504,4772

%N Coordination sequence T2 for Zeolite Code NAB.

%H R. W. Grosse-Kunstleve, <a href="/A301138/b301138.txt">Table of n, a(n) for n = 0..1000</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>

%F G.f.: (1 + 4*x + 8*x^2 + 18*x^3 + 31*x^4 + 32*x^5 + 35*x^6 + 22*x^7 + 4*x^8 + 4*x^9 + x^10) / (1 - x^3)^2 / (1 - x^4).

%t CoefficientList[Series[(1 + 4*x + 8*x^2 + 18*x^3 + 31*x^4 + 32*x^5 + 35*x^6 + 22*x^7 + 4*x^8 + 4*x^9 + x^10)/(1 - x^3)^2/(1 - x^4), {x, 0, 40}], x] (* _Wesley Ivan Hurt_, Sep 05 2022 *)

%K nonn

%O 0,2

%A _Sean A. Irvine_, Mar 18 2018