The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A082182

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

Numbers k such that (5^k - 2^k)/3 is prime.
(history; published version)

#45 by Alois P. Heinz at Wed Dec 20 10:00:11 EST 2023

STATUS

proposed

#44 by Michel Marcus at Wed Dec 20 09:58:03 EST 2023

STATUS

editing

#43 by Michel Marcus at Wed Dec 20 09:58:00 EST 2023

COMMENTS

No other terms less than 1000000. - Jon Grantham, July 29 2023

EXAMPLE

Example: a(1)=2 because (5^2 - 2^2)/3 = (25 - 4)/3 = 7 is a prime.

EXTENSIONS

a(19)-a(22) from Jon Grantham, July 29 2023

STATUS

approved

#42 by Alois P. Heinz at Sat Jul 29 18:50:05 EDT 2023

STATUS

editing

#41 by Alois P. Heinz at Sat Jul 29 18:49:50 EDT 2023

EXTENSIONS

20149 from Herman Jamke (hermanjamke(AT)fastmail.fm), May 03 2007

27983 from David Radcliffe, May 28 2007

#40 by Alois P. Heinz at Sat Jul 29 18:48:49 EDT 2023

EXTENSIONS

281807, 656657, 795829, 832151 from Jon Grantham, July 29 2023

STATUS

proposed

#39 by Jon Grantham at Sat Jul 29 18:46:57 EDT 2023

STATUS

editing

#38 by Jon Grantham at Sat Jul 29 18:46:42 EDT 2023

COMMENTS

#37 by Jon Grantham at Sat Jul 29 18:45:38 EDT 2023

DATA

2, 5, 7, 13, 19, 37, 59, 67, 79, 307, 331, 599, 1301, 12263, 12589, 18443, 20149, 27983

LINKS

EXTENSIONS

STATUS

approved

#36 by Michael De Vlieger at Sun Jul 10 09:42:52 EDT 2022

STATUS

reviewed