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 A034043 #9 Jul 08 2025 20:04:44 %S A034043 0,4,8,9,12,16,18,20,24,25,27,32,36,40,44,45,48,49,50,52,54,56,64,68, %T A034043 72,75,76,80,81,84,88,90,96,98,99,100,104,108,116,117,120,121,125,126, %U A034043 128,132,136,140,144,147,148,150,152,153,160,162,164,168,169 %N A034043 Numbers that are imprimitively represented by x^2+y^2+z^2. %F A034043 Union of A034043 and A034044 is A000378. Intersection of A047449 and A034043 is A034046. Numbers that are in A000378 and not squarefree. - _Ray Chandler_, Sep 05 2004 %Y A034043 Cf. A000378, A004215, A047449, A034044-A034047. %K A034043 nonn %O A034043 1,2 %A A034043 _N. J. A. Sloane_