A324776 North spoke of spiral in A274641.
0, 3, 5, 2, 11, 13, 14, 17, 19, 25, 24, 26, 20, 28, 21, 40, 31, 23, 35, 32, 45, 27, 41, 54, 49, 61, 59, 70, 68, 73, 53, 79, 81, 46, 43, 77, 90, 48, 97, 92, 78, 58, 85, 89, 108, 69, 100, 76, 119, 118, 96, 129, 117, 71, 66, 135, 130, 82, 140, 93, 123, 152, 138
Offset: 0
Keywords
Links
- F. Michel Dekking, Jeffrey Shallit, and N. J. A. Sloane, Queens in exile: non-attacking queens on infinite chess boards, Electronic J. Combin., 27:1 (2020), #P1.52.