The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A062232 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A062232

Numbers k such that the smoothly undulating palindromic number (98*10^k - 89)/99 is a prime.
(history; published version)

#21 by N. J. A. Sloane at Thu Oct 31 01:25:05 EDT 2019

STATUS

proposed

approved

#20 by Michel Marcus at Thu Oct 31 01:10:58 EDT 2019

STATUS

editing

proposed

#19 by Michel Marcus at Thu Oct 31 01:10:55 EDT 2019

LINKS

P. Patrick De Geest, <a href="http://www.worldofnumbers.com/undulat.htm#supp989">SUPP Reference Table - 989</a>

KEYWORD

nonn,base,more,changed

STATUS

proposed

editing

#18 by Jon E. Schoenfield at Thu Oct 31 00:27:33 EDT 2019

STATUS

editing

proposed

#17 by Jon E. Schoenfield at Thu Oct 31 00:27:31 EDT 2019

NAME

Smoothly Numbers k such that the smoothly undulating palindromic primes of the form number (98*10^a(n)k - 89)/99 is a prime.

EXAMPLE

a(n)k=9 -> (98*10^9 - 89)/99 = 989898989.

STATUS

approved

editing

#16 by Jon E. Schoenfield at Fri Oct 25 20:21:49 EDT 2019

STATUS

editing

approved

#15 by Jon E. Schoenfield at Fri Oct 25 20:21:46 EDT 2019

AUTHOR

Patrick De Geest and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001.

STATUS

approved

editing

#14 by Charles R Greathouse IV at Tue Aug 20 21:34:28 EDT 2013

STATUS

editing

approved

#13 by Charles R Greathouse IV at Tue Aug 20 21:34:24 EDT 2013

KEYWORD

nonn,base

STATUS

approved

editing

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

AUTHOR

_Patrick De Geest (pdg(AT)worldofnumbers.com) _ and Hans Rosenthal (Hans.Rosenthal(AT)t-online.de), Jun 15 2001.

Discussion

Fri Aug 24

10:48

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