This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A373883 #36 Jun 25 2024 08:29:16
%S A373883 11,1903,532509,166711479,52646439609,16645828150193,5263797438037625,
%T A373883 1664556518763850069,526378909839312477785,166455624316184206850205,
%U A373883 52637890147973140623040513,16645562406807092052281075983,5263789013922669372094091725857
%N A373883 Number of lattice points inside or on the 5-dimensional hypersphere x_1^2 + x_2^2 + x_3^2 + x_4^2 + x_5^2 = 10^n.
%F A373883 a(n) = A175360(10^n).
%o A373883 (PARI) b(k, n) = my(q='q+O('q^(n+1))); polcoef((eta(q^2)^5/(eta(q)^2*eta(q^4)^2))^k/(1-q), n);
%o A373883 a(n) = b(5, 10^n);
%Y A373883 Cf. A068785, A373881, A373882, A373884, A373885, A373896.
%Y A373883 Cf. A055411, A175360.
%K A373883 nonn,more
%O A373883 0,1
%A A373883 _Seiichi Manyama_, Jun 21 2024
%E A373883 a(7) from _Chai Wah Wu_, Jun 22 2024
%E A373883 a(8)-a(10) from _Chai Wah Wu_, Jun 23 2024
%E A373883 a(11)-a(12) from _Chai Wah Wu_, Jun 24 2024