The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A285017

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A285017

Primes of the form 1 + n + n^2 + n^3 + ... + n^k, n > 1, k > 1 where n is not prime.
(history; published version)

#42 by Joerg Arndt at Mon Jul 31 03:22:51 EDT 2017

STATUS

reviewed

approved

#41 by Michel Marcus at Sun Jul 30 14:44:35 EDT 2017

STATUS

proposed

reviewed

#40 by Jon E. Schoenfield at Sun Jul 30 13:52:19 EDT 2017

STATUS

editing

proposed

#39 by Jon E. Schoenfield at Sun Jul 30 13:52:11 EDT 2017

COMMENTS

Most of these terms come from A185632 which are prime numbers (111)__n with n no prime, the first other term is 22621 = (11111)__12, the next one is 245411 = (11111)__22.

EXAMPLE

157 = 12^2 + 12 + 1 = (111)__12 is prime and 12 is composite.

STATUS

approved

editing

#38 by OEIS Server at Fri Jul 14 03:25:42 EDT 2017

LINKS

Chai Wah Wu, <a href="/A285017/b285017_1.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..1310 from Robert G. Wilson v)

#37 by Bruno Berselli at Fri Jul 14 03:25:42 EDT 2017

STATUS

reviewed

approved

Discussion

Fri Jul 14

03:25

OEIS Server: Installed new b-file as b285017.txt.  Old b-file is now b285017_1.txt.

#36 by Joerg Arndt at Fri Jul 14 02:58:40 EDT 2017

STATUS

proposed

reviewed

#35 by Chai Wah Wu at Thu Jul 13 22:58:27 EDT 2017

STATUS

editing

proposed

#34 by Chai Wah Wu at Thu Jul 13 22:57:15 EDT 2017

LINKS

Robert G. Wilson v, Chai Wah Wu, <a href="/A285017/b285017_1.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..1310</a> from Robert G. Wilson v)

STATUS

approved

editing

#33 by N. J. A. Sloane at Sat Apr 29 22:09:59 EDT 2017

STATUS

editing

approved