The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A155760 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A155760

Primes p such that p+30 and p+60 are prime.
(history; published version)

#19 by Charles R Greathouse IV at Thu Sep 08 08:45:41 EDT 2022

PROG

(MAGMAMagma) [p: p in PrimesUpTo(1000) | IsPrime(p + 30) and IsPrime(p + 60)]; // Vincenzo Librandi, Oct 30 2012

Discussion

Thu Sep 08

08:45

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

#18 by Charles R Greathouse IV at Sat Apr 11 16:32:10 EDT 2015

STATUS

editing

approved

#17 by Charles R Greathouse IV at Sat Apr 11 16:32:07 EDT 2015

PROG

(PARI) select(p->isprime(p+30)&&isprime(p+60), primes(10^3)) \\ Charles R Greathouse IV, Apr 11 2015

STATUS

proposed

editing

#16 by Wesley Ivan Hurt at Sat Apr 11 12:08:33 EDT 2015

STATUS

editing

proposed

#15 by Wesley Ivan Hurt at Sat Apr 11 12:08:28 EDT 2015

MAPLE

A155760:=n->`if`(isprime(n) and isprime(n+30) and isprime(n+60), n, NULL): seq(A155760(n), n=1..2000); # Wesley Ivan Hurt, Apr 11 2015

STATUS

reviewed

editing

#14 by Tom Edgar at Sat Apr 11 11:30:20 EDT 2015

STATUS

proposed

reviewed

#13 by Michel Marcus at Sat Apr 11 00:22:27 EDT 2015

STATUS

editing

proposed

#12 by Michel Marcus at Sat Apr 11 00:21:50 EDT 2015

COMMENTS

Subsequence of A049481. - Zak Seidov, Apr 10 2015

CROSSREFS

Subsequence of A049481. - Zak Seidov, Apr 10 2015

STATUS

proposed

editing

Discussion

Sat Apr 11

00:22

Michel Marcus: More frequently in comments, so I moved it there.

#11 by Zak Seidov at Fri Apr 10 23:47:03 EDT 2015

STATUS

editing

proposed

#10 by Zak Seidov at Fri Apr 10 23:45:53 EDT 2015

CROSSREFS

Subsequence of A049481. - Zak Seidov, Apr 10 2015

STATUS

approved

editing