The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A367970 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A367970

Least k such that 5*n*k+1 is a prime.
(history; published version)

#29 by OEIS Server at Mon Dec 18 13:06:16 EST 2023

LINKS

Robert Price, <a href="/A367970/b367970_1.txt">Table of n, a(n) for n = 1..5000</a>

#28 by Joerg Arndt at Mon Dec 18 13:06:16 EST 2023

STATUS

reviewed

approved

Discussion

Mon Dec 18

13:06

OEIS Server: Installed first b-file as b367970.txt.

#27 by Michel Marcus at Mon Dec 18 12:58:45 EST 2023

STATUS

proposed

reviewed

#26 by Robert Price at Mon Dec 18 12:51:19 EST 2023

STATUS

editing

proposed

#25 by Robert Price at Mon Dec 18 12:51:17 EST 2023

LINKS

Robert Price, <a href="/A367970/b367970_1.txt">Table of n, a(n) for n = 1..5000</a>

STATUS

approved

editing

#24 by Michael De Vlieger at Mon Dec 18 12:22:33 EST 2023

STATUS

reviewed

approved

#23 by Joerg Arndt at Mon Dec 18 08:31:31 EST 2023

STATUS

proposed

reviewed

#22 by Michel Marcus at Sun Dec 17 12:28:12 EST 2023

STATUS

editing

proposed

#21 by Michel Marcus at Sun Dec 17 12:28:10 EST 2023

PROG

(PARI) a(n) = my(k=1); while (!isprime(5*n*k+1), k++); k; \\ Michel Marcus, Dec 17 2023

CROSSREFS

Cf. A016014, A024894.

STATUS

proposed

editing

#20 by Robert Price at Sun Dec 17 11:53:08 EST 2023

STATUS

editing

proposed