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A274924
East spoke of spiral in A274640.
19
1, 2, 4, 8, 11, 12, 16, 9, 19, 24, 22, 18, 27, 26, 21, 37, 43, 39, 40, 49, 28, 29, 32, 46, 55, 60, 45, 48, 66, 73, 70, 76, 83, 77, 65, 75, 42, 62, 94, 96, 101, 103, 67, 63, 112, 80, 113, 58, 107, 64, 108, 120, 109, 69, 124, 130, 140, 134, 122, 133, 139, 129
OFFSET
0,2
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.
CROSSREFS
Cf. A274640, A274641. The 8 spokes are A274924-A274931.
Sequence in context: A235700 A174781 A028846 * A080152 A136994 A137288
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 12 2016
EXTENSIONS
More terms from Alois P. Heinz, Jul 12 2016
STATUS
approved