login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
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 (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: A235700 A174781 A028846 * A080152 A136994 A137288

Adjacent sequences:  A274921 A274922 A274923 * A274925 A274926 A274927

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 12 2016

EXTENSIONS

More terms from Alois P. Heinz, Jul 12 2016

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 16 22:04 EDT 2021. Contains 343955 sequences. (Running on oeis4.)