The On-Line Encyclopedia of Integer Sequences (OEIS)

The OEIS is supported by the many generous donors to the OEIS Foundation.

Revision History for A020340

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A020340

Least square base n doublet (written in base 10).
(history; published version)

#15 by Peter Luschny at Mon Jun 14 15:44:14 EDT 2021

STATUS

reviewed

approved

#14 by Michel Marcus at Mon Jun 14 15:00:47 EDT 2021

STATUS

proposed

reviewed

#13 by Jeffrey Shallit at Mon Jun 14 13:43:09 EDT 2021

STATUS

editing

proposed

#12 by Jeffrey Shallit at Mon Jun 14 13:42:58 EDT 2021

COMMENTS

In Bridy et al. it is shown how to construct infinitely many examples for any given base n >= 2. - _Jeffrey Shallit_, Jun 14 2021

#11 by Michel Marcus at Mon Jun 14 11:08:45 EDT 2021

LINKS

A. Ottens, <a href="https://web.archive.org/web/20041013050849/http://einstein.et.tudelft.nl/~arlet/rec-puzzles.org:80/sol.cgipl/arithmetic/digits/squares/three.digits">The arithmetic-digits-squares-three.digits problem</a>

Discussion

Mon Jun 14

11:08

Michel Marcus: please sign new comment

#10 by Michel Marcus at Mon Jun 14 11:08:18 EDT 2021

REFERENCES

David Wells, "The Penguin Dictionary of Curious and Interesting Numbers", Revised Edition 1997, p. 189.

LINKS

A. Ottens, <a href="http://einstein.et.tudelft.nl/~arlet/puzzles/sol.cgi/arithmetic/digits/squares/three.digits">The arithmetic-digits-squares-three.digits problem</a>

STATUS

proposed

editing

#9 by Jeffrey Shallit at Mon Jun 14 10:47:33 EDT 2021

STATUS

editing

proposed

#8 by Jeffrey Shallit at Mon Jun 14 10:47:23 EDT 2021

COMMENTS

In Bridy et al. it is shown how to construct infinitely many examples for any given base n >= 2.

REFERENCES

Andrew Bridy, Robert J. Lemke Oliver, Arlo Shallit, and Jeffrey Shallit, The Generalized Nagell-Ljunggren Problem: Powers with Repetitive Representations, Experimental Math, 28 (2019), 428-439.

LINKS

Andrew Bridy, Robert J. Lemke Oliver, Arlo Shallit, and Jeffrey Shallit, <a href="https://arxiv.org/abs/1707.03894">The Generalized Nagell-Ljunggren Problem: Powers with Repetitive Representations</a>, preprint arXiv:1707.03894 [math.NT], July 14 2017.

STATUS

approved

editing

#7 by Russ Cox at Fri Mar 30 18:35:13 EDT 2012

AUTHOR

_David W. Wilson (davidwwilson(AT)comcast.net)_

Discussion

Fri Mar 30

18:35

OEIS Server: https://oeis.org/edit/global/202

#6 by N. J. A. Sloane at Sat Sep 13 03:00:00 EDT 2003

KEYWORD

base,nonn,new

AUTHOR

David W. Wilson (davidwwilson(AT)attbicomcast.comnet)