The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A096912 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A096912

Numbers n such that 111*10^n+1 is prime.
(history; published version)

#9 by N. J. A. Sloane at Fri Dec 15 17:36:44 EST 2017

AUTHOR

_Jason Earls (zevi_35711(AT)yahoo.com), _, Aug 17 2004

Discussion

Fri Dec 15

17:36

OEIS Server: https://oeis.org/edit/global/2722

#8 by Charles R Greathouse IV at Mon Jun 12 19:08:06 EDT 2017

STATUS

editing

approved

#7 by Charles R Greathouse IV at Mon Jun 12 19:07:52 EDT 2017

PROG

(PARI) is(n)=ispseudoprime(111*10^n+1) \\ Charles R Greathouse IV, Jun 12 2017

STATUS

approved

editing

#6 by Alois P. Heinz at Mon May 25 03:41:57 EDT 2015

STATUS

reviewed

approved

#5 by Joerg Arndt at Mon May 25 03:15:16 EDT 2015

STATUS

proposed

reviewed

#4 by Predrag Kurtovic at Sun May 24 16:56:44 EDT 2015

STATUS

editing

proposed

#3 by Predrag Kurtovic at Sun May 24 16:56:40 EDT 2015

DATA

8, 16, 20, 62, 64, 76, 100, 142, 230, 670, 2230, 167644

EXTENSIONS

a(12) from Predrag Kurtovic, May 24 2015

STATUS

approved

editing

#2 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009

KEYWORD

more,nonn,new

AUTHOR

Jason Earls (jcearlszevi_35711(AT)cableoneyahoo.netcom), Aug 17 2004

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

NAME

Numbers n such that 111*10^n+1 is prime.

DATA

8, 16, 20, 62, 64, 76, 100, 142, 230, 670, 2230

OFFSET

1,1

COMMENTS

a(1) through a(11) have been proved to be prime with WinPFGW.

KEYWORD

more,nonn

AUTHOR

Jason Earls (jcearls(AT)cableone.net), Aug 17 2004

STATUS

approved