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 A324780 #7 Mar 07 2020 13:50:20 %S A324780 0,4,1,8,12,7,6,10,9,16,18,29,22,30,15,44,33,37,38,36,42,34,55,56,50, %T A324780 52,63,57,39,67,62,64,72,86,47,84,91,74,99,75,51,105,106,65,109,87, %U A324780 116,60,107,122,124,101,127,88,103,128,133,95,131,142,115,146 %N A324780 South spoke of spiral in A274641. %H A324780 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 A324780 Cf. A274640, A274641. %Y A324780 The 8 spokes are A324774-A324781. To get them, subtract 1 from A274924-A274931, respectively. %K A324780 nonn %O A324780 0,2 %A A324780 _N. J. A. Sloane_, Jul 05 2019