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 A034035 #9 Jul 08 2025 20:03:47 %S A034035 3,5,6,7,10,12,13,15,17,19,20,21,24,26,27,29,30,31,33,34,35,38,39,40, %T A034035 41,42,45,47,48,51,52,54,55,57,59,60,61,62,63,65,66,67,68,69,70,73,75, %U A034035 76,78,80,82,83,84,85,87,89,90,91,93,94,95,96,97,101,102,103 %N A034035 Not of form (x^2+xy+2y^2 with x >= 0, y >= 0). %Y A034035 Cf. A034035-A034042, A028951, A257346. %K A034035 nonn %O A034035 1,1 %A A034035 _N. J. A. Sloane_ %E A034035 Definition corrected by _N. J. A. Sloane_, Apr 30 2015