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A035812 Coordination sequence for lattice D*_54 (with edges defined by l_1 norm = 1). 0

%I

%S 1,108,5832,209988,5672592,122653980,2211553368,34208719092,

%T 463476372768,5588323254732,60724672249320,600778137474468,

%U 5457607130811312,45848471510756988,358366157766535032

%N Coordination sequence for lattice D*_54 (with edges defined by l_1 norm = 1).

%D J. Serra-Sagrista, Enumeration of lattice points in l_1 norm, Information Processing Letters, 76, no. 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=54.

%K nonn

%O 0,2

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

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Last modified October 20 22:22 EDT 2021. Contains 348119 sequences. (Running on oeis4.)