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 A338799 #21 Nov 14 2020 20:47:57 %S A338799 10,338,6058655748,3262811042 %N A338799 Smallest number that is the sum of two n-th powers of primes in two different ways. %C A338799 The Lander, Parkin, and Selfridge conjecture implies that for n >= 5 a number can be the sum of two n-th powers of positive integers in at most one way, and in particular that a(n) does not exist for n >= 5. - _Robert Israel_, Nov 13 2020 %H A338799 Wikipedia, <a href="https://en.wikipedia.org/wiki/Lander,_Parkin,_and_Selfridge_conjecture">Lander, Parkin, and Selfridge conjecture</a>. %e A338799 10 = 3 + 7 = 5 + 5. %e A338799 338 = 7^2 + 17^2 = 13^2 + 13^2. %e A338799 6058655748 = 61^3 + 1823^3 = 1049^3 + 1699^3. %e A338799 3262811042 = 7^4 + 239^4 = 157^4 + 227^4. %Y A338799 Cf. A016078, A046881, A338800. %K A338799 nonn,hard,more %O A338799 1,1 %A A338799 _Ilya Gutkovskiy_, Nov 10 2020