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 A288102 #15 Jul 18 2018 02:19:19
%S A288102 1,4,9,20,25,36,49,112,99,100,121,180,169,196,225,704,289,396,361,500,
%T A288102 441,484,529,1008,725,676,1377,980,589,900,961,4864,1089,1156,1225,
%U A288102 1980,1369,1444,1521,2800,1681,1764,4999,2420,2475,2116,2209,6336,10633,2900
%N A288102 Number of solutions to x^7 + y^7 = z^7 mod n.
%C A288102 Equivalently, the number of solutions to x^7 + y^7 + z^7 == 0 (mod n). - _Andrew Howroyd_, Jul 17 2018
%H A288102 Seiichi Manyama, <a href="/A288102/b288102.txt">Table of n, a(n) for n = 1..1000</a>
%o A288102 (PARI) a(n)={my(p=Mod(sum(i=0, n-1, x^lift(Mod(i,n)^7)), 1-x^n)); polcoeff(lift(p^3), 0)} \\ _Andrew Howroyd_, Jul 17 2018
%Y A288102 Number of solutions to x^k + y^k = z^k mod n: A062775 (k=2), A063454 (k=3), A288099 (k=4), A288100 (k=5), A288101 (k=6), this sequence (k=7), A288103 (k=8), A288104 (k=9), A288105 (k=10).
%K A288102 nonn,mult
%O A288102 1,2
%A A288102 _Seiichi Manyama_, Jun 05 2017
%E A288102 Keyword:mult added by _Andrew Howroyd_, Jul 17 2018