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G.f. = Phi^3, where Phi = g.f. for A028930.
1

%I #6 Oct 19 2019 18:05:18

%S 1,0,6,6,18,24,50,48,90,86,120,120,176,150,240,240,288,288,440,360,

%T 504,480,600,528,818,528,738,758,1008,774,1200,918,1260,1200,1440,

%U 1056,1714,1368,1800,1574,2040,1494,2400,1848,2520,2184,2502,2070,3046

%N G.f. = Phi^3, where Phi = g.f. for A028930.

%D Köklüce, Bülent. "Cusp forms in S_6 (Gamma_ 0(23)), S_8 (Gamma_0 (23)) and the number of representations of numbers by some quadratic forms in 12 and 16 variables." The Ramanujan Journal 34.2 (2014): 187-208. See Phi_k, p. 188. (A028930 is Phi_1.)

%H Alois P. Heinz, <a href="/A328528/b328528.txt">Table of n, a(n) for n = 0..5000</a>

%Y Cf. A028930.

%K nonn

%O 0,3

%A _N. J. A. Sloane_, Oct 18 2019