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A274928 West spoke of spiral in A274640. 3

%I #14 Mar 07 2020 13:50:20

%S 1,3,5,6,7,15,10,17,13,25,14,31,20,33,34,38,35,36,23,41,52,47,53,44,

%T 30,54,61,50,51,57,71,78,81,72,79,86,93,74,91,89,98,102,105,56,106,82,

%U 97,88,95,87,59,110,68,85,125,84,126,128,116,144,92,127,142

%N West spoke of spiral in A274640.

%H Alois P. Heinz, <a href="/A274928/b274928.txt">Table of n, a(n) for n = 0..1000</a>

%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. The 8 spokes are A274924-A274931.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, Jul 12 2016

%E More terms from _Alois P. Heinz_, Jul 12 2016

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Last modified March 29 01:34 EDT 2024. Contains 371264 sequences. (Running on oeis4.)