The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A076197 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A076197

Numbers k such that k!! + 2^10 is prime.
(history; published version)

#32 by Susanna Cuyler at Sat Jul 20 08:07:21 EDT 2019

STATUS

proposed

approved

#31 by Jon E. Schoenfield at Fri Jul 19 21:38:47 EDT 2019

STATUS

editing

proposed

#30 by Jon E. Schoenfield at Fri Jul 19 21:38:44 EDT 2019

NAME

Numbers n k such that nk!! + 2^10 is prime.

CROSSREFS

Numbers n k such nthat k!! + 2^s is prime: A080778 (s=0), A076185 (s=1), A076186 (s=2), A076188 (s=3), A076189 (s=4), A076190 (s=5), A076193 (s=6), A076194 (s=7), A076195 (s=8), A076196 (s=9).

STATUS

approved

editing

#29 by Bruno Berselli at Sun May 31 16:45:20 EDT 2015

STATUS

proposed

approved

#28 by Michel Marcus at Sun May 31 16:44:04 EDT 2015

STATUS

editing

proposed

#27 by Michel Marcus at Sun May 31 16:43:56 EDT 2015

LINKS

OpenPFGW Project, <a href="http://www.primeform.net/openpfgw/">Primality Tester</a>

STATUS

proposed

editing

#26 by Chai Wah Wu at Sun May 31 16:41:50 EDT 2015

STATUS

editing

proposed

#25 by Chai Wah Wu at Sun May 31 16:41:45 EDT 2015

PROG

(Python)

from gmpy2 import is_prime

A076197_list, g, h = [], 1, 1024

for i in range(3, 10**5, 2):

....g *= i

....if is_prime(g+h):

........A076197_list.append(i) # Chai Wah Wu, May 31 2015

STATUS

approved

editing

#24 by Alois P. Heinz at Tue Feb 24 18:14:36 EST 2015

STATUS

proposed

approved

#23 by Robert Price at Tue Feb 24 17:16:16 EST 2015

STATUS

editing

proposed