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Revision History for A020287

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Showing entries 1-10 | older changes

A020287

Strong pseudoprimes to base 61.
(history; published version)

#13 by R. J. Mathar at Tue Aug 04 06:51:42 EDT 2015

STATUS

editing

approved

#12 by R. J. Mathar at Tue Aug 04 06:51:22 EDT 2015

LINKS

R. J. Mathar, <a href="/A020287/b020287.txt">Table of n, a(n) for n = 1..202</a>

STATUS

approved

editing

#11 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

#10 by Russ Cox at Sun Jul 10 18:37:22 EDT 2011

LINKS

<a href="/Sindx_index/Ps.html#pseudoprimes">Index entries for sequences related to pseudoprimes</a>

Discussion

Sun Jul 10

18:37

OEIS Server: https://oeis.org/edit/global/74

#9 by R. J. Mathar at Tue Apr 05 11:10:54 EDT 2011

STATUS

proposed

approved

#8 by R. J. Mathar at Tue Apr 05 11:08:31 EDT 2011

COMMENTS

The smallest number which is a strong pseudoprime to the bases 2 (A001262), 7 (A020233) and also 61 (here) is 4759123141 [Jaeschke]. - R. J. Mathar, Apr 05 2011

LINKS

G. Jaeschke, <a href="http://dx.doi.org/10.1090/S0025-5718-1993-1192971-8">On strong pseudoprimes to several bases</a>, Mathematics of Computation, 61 (1993), 915-926.

STATUS

approved

proposed

#7 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010

LINKS

<a href="/Sindx_Ps.html#pseudoprimes">Index entries for sequences related to pseudoprimes</a>

KEYWORD

nonn,new

nonn

#6 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

LINKS

<a href="http://www.research.att.com/~njas/sequences/Sindx_Ps.html#pseudoprimes">Index entries for sequences related to pseudoprimes</a>

KEYWORD

nonn,new

nonn

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

KEYWORD

nonn,new

nonn

AUTHOR

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

#4 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

LINKS

<a href="http://www.research.att.com/~njas/sequences/Sindx_PPs.html#pseudoprimes">Index entries for sequences related to pseudoprimes</a>

KEYWORD

nonn,new

nonn

AUTHOR

dww

David W. Wilson (davidwwilson(AT)attbi.com)