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 A034028 #10 Jul 08 2025 20:02:54 %S A034028 2,5,7,8,10,13,14,15,19,20,21,22,23,26,28,29,30,31,32,35,37,39,40,41, %T A034028 42,45,46,47,50,52,53,55,56,58,59,60,61,62,63,65,69,70,71,73,74,76,77, %U A034028 78,79,80,84,85,87,88,90,91,92,93,94,95,97,98,101,103,104,105 %N A034028 Numbers n not of form (x^2+2y^2 with x >= y >= 0). %Y A034028 Complement of A034027. Cf. A097700. %K A034028 nonn %O A034028 1,1 %A A034028 _N. J. A. Sloane_ %E A034028 Definition corrected by _N. J. A. Sloane_, Apr 30 2015