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 A034045 #9 Jul 08 2025 20:04:59 %S A034045 0,4,8,12,16,20,24,32,36,40,44,48,52,56,64,68,72,76,80,84,88,96,100, %T A034045 104,108,116,120,128,132,136,140,144,148,152,160,164,168,172,176,180, %U A034045 184,192,196,200,204,208,212,216,224,228,232,236,244,248,256 %N A034045 Numbers that are imprimitively but not primitively represented by x^2+y^2+z^2. %F A034045 Union of A047449 and A034045 is A000378. Union of A034044 and A034045 is A034047. Numbers that are in A000378 and congruent to 0 mod 4. - _Ray Chandler_, Sep 05 2004 %Y A034045 Cf. A000378, A004215, A047449, A034043-A034047. %K A034045 nonn %O A034045 1,2 %A A034045 _N. J. A. Sloane_