The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A274917 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A274917

Square spiral in which each new term is the least positive integer distinct from its (already assigned) eight neighbors.
(history; published version)

#65 by N. J. A. Sloane at Sat Mar 07 13:50:20 EST 2020

LINKS

F. Michel Dekking, Jeffrey Shallit, and N. J. A. Sloane, <a href="httphttps://arxivwww.combinatorics.org/absojs/1907index.09120php/eljc/article/view/v27i1p52/8039">Queens in exile: non-attacking queens on infinite chess boards</a>, arXivElectronic J. Combin., 27:19071 (2020), #P1.52.09120, July 2019

Discussion

Sat Mar 07

13:50

OEIS Server: https://oeis.org/edit/global/2853

#64 by N. J. A. Sloane at Mon Jul 22 22:15:44 EDT 2019

STATUS

editing

approved

#63 by N. J. A. Sloane at Mon Jul 22 22:15:40 EDT 2019

LINKS

F. Michel Dekking, Jeffrey Shallit, and N. J. A. Sloane, <a href="http://arxiv.org/abs/1907.09120">Queens in exile: non-attacking queens on infinite chess boards</a>, arXiv:1907.09120, July 2019

STATUS

approved

editing

#62 by Joerg Arndt at Sun Mar 31 02:04:29 EDT 2019

STATUS

reviewed

approved

#61 by Michel Marcus at Sun Mar 31 01:21:11 EDT 2019

STATUS

proposed

reviewed

#60 by Omar E. Pol at Sat Mar 30 23:47:41 EDT 2019

STATUS

editing

proposed

#59 by Omar E. Pol at Sat Mar 30 23:47:19 EDT 2019

NAME

Square spiral in which each new term is the least positive integer distinct from its (already assigned) eight neighbors.

STATUS

proposed

editing

Discussion

Sat Mar 30

23:47

Omar E. Pol: Done.

#58 by Omar E. Pol at Sat Mar 30 14:11:20 EDT 2019

STATUS

editing

proposed

Discussion

Sat Mar 30

14:39

Michel Marcus: name could have "eight" like A275609 ?

#57 by Omar E. Pol at Sat Mar 30 14:10:47 EDT 2019

CROSSREFS

Cf. A274913, A274921, A275609, A278354 (number of neighbors).

STATUS

approved

editing

Discussion

Sat Mar 30

14:11

Omar E. Pol: Added a cross-reference.

#56 by N. J. A. Sloane at Sun Mar 24 20:54:58 EDT 2019

STATUS

editing

approved