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Coordination sequence for lattice D*_72 (with edges defined by l_1 norm = 1).
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%I #7 Sep 05 2023 15:18:18

%S 1,144,10368,497712,17922816,516475728,12407366016,255606154992,

%T 4610216314368,73962265817104,1068744800817792,14051355610010544,

%U 169506887987474688,1889504367838959312,19580193687475702656

%N Coordination sequence for lattice D*_72 (with edges defined by l_1 norm = 1).

%H Joan Serra-Sagrista, <a href="http://dx.doi.org/10.1016/S0020-0190(00)00119-8">Enumeration of lattice points in l_1 norm</a>, Inf. Proc. Lett. 76 (1-2) (2000) 39-44.

%F a(m)=add(2^k*binomial(n, k)*binomial(m-1, k-1), k=0..n)+2^n*binomial((n+2*m)/2-1, n-1); with n=72.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, J. Serra-Sagrista (jserra(AT)ccd.uab.es)