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 A034033 #7 Jul 08 2025 20:03:31 %S A034033 9,18,27,54,81,99,121,153,162,171,198,242,243,289,297,306,342,361,363, %T A034033 369,387,459,486,513,531,578,594,603,657,722,726,729,738,747,774,801, %U A034033 867,873,891,918,963,1017,1026,1062,1083,1089 %N A034033 Both primitively and imprimitively represented by x^2+2y^2. %Y A034033 Cf. A002479, A097700, A057127, A034030-A034034. %K A034033 nonn %O A034033 1,1 %A A034033 _N. J. A. Sloane_ %E A034033 Corrected by _N. J. A. Sloane_, Apr 30 2015