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

0,2

Links

Table of n, a(n) for n=0..62.

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 A324774-A324781. To get them, subtract 1 from A274924-A274931, respectively.

Sequence in context: A112323 A102507 A076556 * A325891 A217859 A108426

Adjacent sequences: A324773 A324774 A324775 * A324777 A324778 A324779

Keyword

nonn

Author

N. J. A. Sloane, Jul 05 2019

Status

approved