The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A062224

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A062224

Numbers k such that the smoothly undulating palindromic number (75*10^k - 57)/99 is a prime.
(history; published version)

#20 by N. J. A. Sloane at Thu Oct 31 01:23:54 EDT 2019

STATUS

proposed

approved

#19 by Michel Marcus at Thu Oct 31 01:11:22 EDT 2019

STATUS

editing

proposed

#18 by Michel Marcus at Thu Oct 31 01:11:20 EDT 2019

LINKS

P. Patrick De Geest, <a href="http://www.worldofnumbers.com/undulat.htm#supp757">SUPP Reference Table - 757</a>

KEYWORD

nonn,base,more,changed

STATUS

proposed

editing

#17 by Jon E. Schoenfield at Thu Oct 31 00:26:01 EDT 2019

STATUS

editing

proposed

#16 by Jon E. Schoenfield at Thu Oct 31 00:25:58 EDT 2019

NAME

Smoothly Numbers k such that the smoothly undulating palindromic primes of the form number (75*10^a(n)k - 57)/99 is a prime.

EXAMPLE

a(n)k=17 -> (75*10^17 - 57)/99 = 75757575757575757.

STATUS

approved

editing

#15 by Jon E. Schoenfield at Sat Oct 26 17:34:37 EDT 2019

STATUS

editing

approved

#14 by Jon E. Schoenfield at Sat Oct 26 17:34:34 EDT 2019

AUTHOR

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

STATUS

approved

editing

#13 by Charles R Greathouse IV at Thu Oct 03 09:56:28 EDT 2013

STATUS

editing

approved

#12 by Charles R Greathouse IV at Thu Oct 03 09:56:08 EDT 2013

KEYWORD

nonn,base

STATUS

approved

editing

#11 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