The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A002242

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A002242

Numbers k such that 45*2^k - 1 is prime.
(history; published version)

#26 by Michael De Vlieger at Mon Dec 20 20:59:18 EST 2021

STATUS

proposed

approved

#25 by Jon E. Schoenfield at Mon Dec 20 20:32:18 EST 2021

STATUS

editing

proposed

#24 by Jon E. Schoenfield at Mon Dec 20 20:32:10 EST 2021

NAME

Numbers n k such that 45*2^nk - 1 is prime.

AUTHOR

N. J. A. Sloane.

STATUS

approved

editing

#23 by N. J. A. Sloane at Thu Jan 17 10:08:17 EST 2019

LINKS

Kosmaj, <a href="http://www.15k.org/riesellist.htmhtml">Riesel list k<300</a>.

Discussion

Thu Jan 17

10:08

OEIS Server: https://oeis.org/edit/global/2790

#22 by N. J. A. Sloane at Thu Dec 20 14:03:03 EST 2018

LINKS

Ray Ballinger and Wilfrid Keller, <a href="http://www.prothsearch.com/rieselriesel1.html">List of primes k.2^n + 1 for k < 300</a>

Discussion

Thu Dec 20

14:03

OEIS Server: https://oeis.org/edit/global/2778

#21 by N. J. A. Sloane at Thu Dec 13 17:03:42 EST 2018

LINKS

Ray Ballinger and Wilfrid Keller, <a href="http://web.archive.org/web/20161028080239/http://www.prothsearch.netcom/riesel.html">List of primes k.2^n + 1 for k < 300</a>

Discussion

Thu Dec 13

17:03

OEIS Server: https://oeis.org/edit/global/2777

#20 by N. J. A. Sloane at Wed Dec 12 07:58:04 EST 2018

LINKS

Wilfrid Keller, <a href="http://web.archive.org/web/20161028021640/http://www.prothsearch.netcom/riesel2.html">List of primes k.2^n - 1 for k < 300</a>

Discussion

Wed Dec 12

07:58

OEIS Server: https://oeis.org/edit/global/2776

#19 by N. J. A. Sloane at Thu Mar 02 11:38:02 EST 2017

LINKS

Ray Ballinger and Wilfrid Keller, <a href="http://web.archive.org/web/20161028080239/http://www.prothsearch.net/riesel.html">List of primes k.2^n + 1 for k < 300</a>

Discussion

Thu Mar 02

11:38

OEIS Server: https://oeis.org/edit/global/2607

#18 by N. J. A. Sloane at Thu Mar 02 11:36:06 EST 2017

LINKS

Wilfrid Keller, <a href="http://web.archive.org/web/20161028021640/http://www.prothsearch.net/riesel2.html">List of primes k.2^n - 1 for k < 300</a>

Discussion

Thu Mar 02

11:36

OEIS Server: https://oeis.org/edit/global/2606

#17 by Russ Cox at Fri Mar 30 16:43:23 EDT 2012

AUTHOR

_N. J. A. Sloane (njas(AT)research.att.com)_.

Discussion

Fri Mar 30

16:43

OEIS Server: https://oeis.org/edit/global/110