The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A058443 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A058443

Numbers k such that k^2 contains only digits {0,4,9}, not ending with zero.
(history; published version)

#11 by N. J. A. Sloane at Sun Aug 11 14:41:33 EDT 2024

LINKS

P. De Geest, <a href="httphttps://www.worldofnumbers.com/threedigits.htm">Index to related sequences</a>

Discussion

Sun Aug 11

14:41

OEIS Server: https://oeis.org/edit/global/2998

#10 by OEIS Server at Fri Mar 08 21:14:36 EST 2024

LINKS

Zhao Hui Du, <a href="/A058443/b058443_1.txt">Table of n, a(n) for n = 1..54</a>

#9 by Alois P. Heinz at Fri Mar 08 21:14:36 EST 2024

STATUS

proposed

approved

Discussion

Fri Mar 08

21:14

OEIS Server: Installed first b-file as b058443.txt.

#8 by Zhao Hui Du at Fri Mar 08 20:46:31 EST 2024

STATUS

editing

proposed

#7 by Zhao Hui Du at Fri Mar 08 20:46:26 EST 2024

LINKS

Zhao Hui Du, <a href="/A058443/b058443_1.txt">Table of n, a(n) for n = 1..54</a>

STATUS

approved

editing

#6 by Jon E. Schoenfield at Fri Oct 18 22:18:28 EDT 2019

STATUS

editing

approved

#5 by Jon E. Schoenfield at Fri Oct 18 22:18:26 EDT 2019

NAME

Numbers n k such that nk^2 contains only digits {0,4,9}, not ending with zero.

AUTHOR

Patrick De Geest, Nov 15 2000.

STATUS

approved

editing

#4 by Charles R Greathouse IV at Fri Aug 24 10:48:22 EDT 2012

AUTHOR

_Patrick De Geest (pdg(AT)worldofnumbers.com), _, Nov 15 2000.

Discussion

Fri Aug 24

10:48

OEIS Server: https://oeis.org/edit/global/1824

#3 by N. J. A. Sloane at Wed Sep 22 03:00:00 EDT 2004

NAME

Numbers n such that n^2 contains only digits {0,4,9}, not ending with zero.

KEYWORD

nonn,base,new

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

KEYWORD

nonn,base,new

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 2000.