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%I #21 Sep 27 2019 07:02:47
%S 1,11,221,1343,5913,16875,42205,89527,176377,313259,532509,853399,
%T 1322921,1961211,2846933,4005143,5554265,7491355,9977557,13065527,
%U 16907817,21524019,27179909,33921671,42036401,51452803,62664773
%N Number of points in Z^5 of norm <= n.
%H Andrew Howroyd, <a href="/A055411/b055411.txt">Table of n, a(n) for n = 0..500</a>
%F a(n) = A122510(5,n^2). - _R. J. Mathar_, Apr 21 2010
%F a(n) = [x^(n^2)] theta_3(x)^5/(1 - x), where theta_3() is the Jacobi theta function. - _Ilya Gutkovskiy_, Apr 14 2018
%t t[d_, n_] := t[d, n] = t[d, n - 1] + SquaresR[d, n]; t[d_, 0] = 1;
%t a[n_] := t[5, n^2];
%t a /@ Range[0, 100] (* _Jean-François Alcover_, Sep 27 2019, after _R. J. Mathar_ *)
%Y Column k=5 of A302997.
%Y Cf. A122510.
%K nonn
%O 0,2
%A _David W. Wilson_
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