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 A088298 #9 Mar 09 2020 09:14:03 %S A088298 4,5,7,7,10,8,13,11,10,13,14,13,17,19,16,19,14,17,19,23,17,16,23,22, %T A088298 17,28,26,25,19,22,31,29,23,31,25,29,34,31,22,35,28,31,23,25,32,35,29, %U A088298 40,31,35,26,29,37,32,43,40,38,37,41,31,44,43,37,41,29,47,31,37,47,46,35 %N A088298 Values of 2x + y, where x^2 + xy + y^2=p (x<y) is a prime of the form 6n + 1 (=A002476). %t A088298 Reap[For[n = 1, n <= 200, n++, If[PrimeQ[p = 6 n + 1], s = Solve[x^2 + x y + y^2 == p && 0 < x < y, {x, y}, Integers]; %t A088298 Sow[2x + y /. s[[1]]]]]][[2, 1]] (* _Jean-François Alcover_, Mar 09 2020 *) %Y A088298 Cf. A002476, A088241, A088242, A088243, A088296, A088299, A088977. %K A088298 nonn %O A088298 1,1 %A A088298 _Lekraj Beedassy_, Nov 03 2003 %E A088298 More terms from _Ray Chandler_, Nov 04 2003