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 A300163 #29 Mar 13 2018 09:09:23 %S A300163 1,2,3,5,7,8,11,15,17,23,31,35,39,47,63,71,95,127,143,161,191,215,255, %T A300163 287,319,383,575,639,767,959,1151 %N A300163 Records in the number of ways to express a number of the form n^2 + 1 as j^2 + k^2 with j > k > 1. %e A300163 a(6) = 8 because A300162(6) = A300161(6)^2 + 1 = 71825 is the smallest number expressible in 8 ways: 71825 = 265^2 + 40^2 = 260^2 + 65^2 = 257^2 + 76^2 = 247^2 + 104^2 = 236^2 + 127^2 = 215^2 + 160^2 = 208^2 + 169^2 = 191^2 + 188^2. %Y A300163 Cf. A060306, A071385, A299707, A299708, A300161, A300162, A300168. %K A300163 nonn,more %O A300163 1,2 %A A300163 _Hugo Pfoertner_, Feb 27 2018 %E A300163 a(17) from _Hugo Pfoertner_, Mar 08 2018 %E A300163 a(18)-a(21) from _Robert Price_, Mar 10 2018 %E A300163 a(22)-a(31) from _Giovanni Resta_, Mar 13 2018