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 A274929 #16 Mar 07 2020 13:50:20 %S A274929 1,4,6,5,14,10,11,23,16,18,21,24,19,29,46,44,30,31,58,36,33,43,41,39, %T A274929 40,79,78,83,47,91,57,62,56,54,61,63,59,66,115,65,73,72,75,76,131,144, %U A274929 92,84,81,71,82,87,164,100,172,106,104,174,179,182,105,101,191 %N A274929 Southwest spoke of spiral in A274640. %H A274929 Alois P. Heinz, <a href="/A274929/b274929.txt">Table of n, a(n) for n = 0..1000</a> %H A274929 F. Michel Dekking, Jeffrey Shallit, and N. J. A. Sloane, <a href="https://www.combinatorics.org/ojs/index.php/eljc/article/view/v27i1p52/8039">Queens in exile: non-attacking queens on infinite chess boards</a>, Electronic J. Combin., 27:1 (2020), #P1.52. %Y A274929 Cf. A274640, A274641. The 8 spokes are A274924-A274931. %K A274929 nonn %O A274929 0,2 %A A274929 _N. J. A. Sloane_, Jul 12 2016 %E A274929 More terms from _Alois P. Heinz_, Jul 12 2016