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A274929 Southwest spoke of spiral in A274640. 1
1, 4, 6, 5, 14, 10, 11, 23, 16, 18, 21, 24, 19, 29, 46, 44, 30, 31, 58, 36, 33, 43, 41, 39, 40, 79, 78, 83, 47, 91, 57, 62, 56, 54, 61, 63, 59, 66, 115, 65, 73, 72, 75, 76, 131, 144, 92, 84, 81, 71, 82, 87, 164, 100, 172, 106, 104, 174, 179, 182, 105, 101, 191 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..1000

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: A012891 A013074 A140384 * A301915 A009456 A009465

Adjacent sequences:  A274926 A274927 A274928 * A274930 A274931 A274932

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 12 2016

EXTENSIONS

More terms from Alois P. Heinz, Jul 12 2016

STATUS

approved

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Last modified June 22 14:22 EDT 2021. Contains 345380 sequences. (Running on oeis4.)