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!)
A001366 Maximal number of unattacked squares with n queens on n X n board (answers for n >= 17 only probable). 3
0, 0, 0, 1, 3, 5, 7, 11, 18, 22, 30, 36, 47, 56, 72, 82, 97, 111, 132, 145, 170, 186, 216, 240, 260, 290, 324, 360, 381, 420 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..30.

Yanan Jiang and Steven J. Miller, Generalizing Ruth-Aaron Numbers, arXiv:2010.14990 [math.NT], 2020.

Bernard Lemaire and Pavel Vitushinkiy, Placing n non dominating queens on the n X n chessboard. Part I, French Federation of Mathematical Games.

Bernard Lemaire and Pavel Vitushinkiy, Placing n non dominating queens on the n X n chessboard. Part II, French Federation of Mathematical Games.

Steven J. Miller, Haoyu Sheng, and Daniel Turek, When rooks miss: probability through chess, Williams College (2020).

Mario Velucchi, Source

Eric Weisstein's World of Mathematics, Queens Problem.

CROSSREFS

Cf. A019317, A274947.

Sequence in context: A038944 A124081 A119573 * A093329 A246533 A111052

Adjacent sequences:  A001363 A001364 A001365 * A001367 A001368 A001369

KEYWORD

nonn,more

AUTHOR

Mario Velucchi (mathchess(AT)velucchi.it)

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 9 22:13 EDT 2021. Contains 343746 sequences. (Running on oeis4.)