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 A034036 #11 Jul 08 2025 20:03:55 %S A034036 0,1,2,4,8,9,11,14,16,18,22,23,25,28,32,36,37,43,44,46,49,50,53,56,58, %T A034036 64,71,72,74,77,79,81,86,88,92,98,99,100,106,107,109,112,116,121,126, %U A034036 127,128,134,137,142,144,148,149,151,154,158,161,162,163,169 %N A034036 Numbers of the form (x^2+xy+2y^2 with x>=0, y>=0). %Y A034036 Cf. A034035-A034042, A028951. %K A034036 nonn %O A034036 1,3 %A A034036 _N. J. A. Sloane_ %E A034036 Definition corrected by _N. J. A. Sloane_, Apr 30 2015