A324777 - OEIS

%I #8 Mar 07 2020 13:50:20

%S 0,1,2,3,7,8,6,10,13,9,21,28,17,18,24,25,19,29,32,27,30,31,44,66,40,

%T 33,37,43,47,50,48,99,54,51,57,52,59,60,63,62,120,74,69,64,70,71,82,

%U 80,73,78,83,81,85,87,84,86,175,94,95,92,105,102,108,111,104

%N North-West spoke of spiral in A274641.

%H 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 Cf. A274640, A274641.

%Y The 8 spokes are A324774-A324781. To get them, subtract 1 from A274924-A274931, respectively.

%K nonn

%O 0,3

%A _N. J. A. Sloane_, Jul 05 2019