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%I #13 Feb 20 2020 07:18:49
%S 1,8,24,32,40,144,304,288,408,1000,1216,1344,2368,2384,2976,5288,4264,
%T 4656,8504,5792,10032,11232,11072,10176,20016,17624,19056,25280,23904,
%U 23184,46552,27072,34968,46240,41360,47136,67784,46288,55776,74720,81600,65232,104928
%N Expansion of (theta_3(z)*theta_3(15z) + theta_2(z)*theta_2(15z))^4.
%H Jinyuan Wang, <a href="/A028628/b028628.txt">Table of n, a(n) for n = 0..1000</a>
%o (PARI) a(n) = polcoeff((1 + 2*x*Ser(qfrep([2, 1; 1, 8], n, 1)))^4, n); \\ _Jinyuan Wang_, Feb 20 2020
%Y Cf. A028626, A028627.
%K nonn
%O 0,2
%A _N. J. A. Sloane_
%E More terms from _Jinyuan Wang_, Feb 20 2020
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