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Revision History for A128337

(Bold, blue-underlined text is an addition; faded, red-underlined text is a deletion.)

Showing entries 1-10 | older changes
Numbers k such that (7^k + 5^k)/12 is prime.
(history; published version)
#13 by N. J. A. Sloane at Fri Jun 11 00:17:37 EDT 2021
STATUS

proposed

approved

#12 by Jon E. Schoenfield at Thu Jun 10 23:36:13 EDT 2021
STATUS

editing

proposed

#11 by Jon E. Schoenfield at Thu Jun 10 23:36:12 EDT 2021
NAME

Numbers n k such that (7^n k + 5^nk)/12 is prime.

STATUS

approved

editing

#10 by Charles R Greathouse IV at Fri Feb 17 11:58:51 EST 2017
STATUS

editing

approved

#9 by Charles R Greathouse IV at Fri Feb 17 11:58:41 EST 2017
PROG

(PARI) is(n)=isprime((7^n+5^n)/12) \\ Charles R Greathouse IV, Feb 17 2017

STATUS

approved

editing

#8 by Alois P. Heinz at Tue Nov 20 21:18:21 EST 2012
STATUS

editing

approved

#7 by Alois P. Heinz at Tue Nov 20 21:18:16 EST 2012
COMMENTS

a(13) > 10^5 . - _Robert Price, _, Nov 20 2012

STATUS

proposed

editing

#6 by Robert Price at Tue Nov 20 20:02:24 EST 2012
STATUS

editing

proposed

#5 by Robert Price at Tue Nov 20 20:01:54 EST 2012
COMMENTS

a(13) ^ > 10^5 - Robert Price, Nov 20 2012

#4 by Robert Price at Tue Nov 20 20:01:24 EST 2012
DATA

11, 31, 173, 271, 547, 1823, 2111, 5519, 7793, 22963, 41077, 49739

COMMENTS

a(13) ^ 10^5 - Robert Price, Nov 20 2012

EXTENSIONS

a(6)-a(12) from Robert Price, Nov 20 2012

STATUS

approved

editing