The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A086304 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A086304

Numbers n such that n+6 is prime.
(history; published version)

#13 by Charles R Greathouse IV at Thu Sep 08 08:45:11 EDT 2022

PROG

(MAGMAMagma) [n: n in [0..300]| IsPrime(n + 6)]; // Vincenzo Librandi, Oct 16 2012

Discussion

Thu Sep 08

08:45

OEIS Server: https://oeis.org/edit/global/2944

#12 by Charles R Greathouse IV at Mon May 22 11:48:17 EDT 2017

STATUS

editing

approved

#11 by Charles R Greathouse IV at Mon May 22 11:48:12 EDT 2017

PROG

(PARI) is(n)=isprime(n+6) \\ Charles R Greathouse IV, May 22 2017

STATUS

approved

editing

#10 by Bruno Berselli at Tue Oct 16 03:39:12 EDT 2012

STATUS

editing

approved

#9 by Bruno Berselli at Tue Oct 16 03:38:25 EDT 2012

FORMULA

a(n) = 2*A089038(n+1)-1.

#8 by Bruno Berselli at Tue Oct 16 03:37:04 EDT 2012

NAME

Numbers n such that n+6 is prime.

FORMULA

a(n) = 2*A089038(n)-1.

KEYWORD

easy,nonn,easy,changed

STATUS

proposed

editing

#7 by Vincenzo Librandi at Tue Oct 16 01:46:55 EDT 2012

STATUS

editing

proposed

#6 by Vincenzo Librandi at Tue Oct 16 01:46:38 EDT 2012

LINKS

Vincenzo Librandi, <a href="/A086304/b086304.txt">Table of n, a(n) for n = 1..1000</a>

MATHEMATICA

Select[Range[0, 900], PrimeQ[# + 6] &] (* Vincenzo Librandi, Oct 16 2012 *)

PROG

(MAGMA) [n: n in [0..300]| IsPrime(n + 6)]; // Vincenzo Librandi, Oct 16 2012

STATUS

approved

editing

#5 by Russ Cox at Fri Mar 30 18:39:58 EDT 2012

AUTHOR

_Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), _, Aug 29 2003

Discussion

Fri Mar 30

18:39

OEIS Server: https://oeis.org/edit/global/226

#4 by Russ Cox at Fri Mar 30 17:29:07 EDT 2012

EXTENSIONS

Corrected and extended by _Ray Chandler (rayjchandler(AT)sbcglobal.net), _, Nov 29 2003

Discussion

Fri Mar 30

17:29

OEIS Server: https://oeis.org/edit/global/154