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A309855 Primes p such that 2*p^5-1 is also prime. 3
7, 151, 379, 547, 631, 727, 769, 1531, 1627, 1741, 1789, 1999, 2131, 2437, 2659, 2797, 2857, 2917, 3217, 3331, 3511, 3919, 3931, 4591, 4651, 4759, 4801, 4831, 4957, 5281, 5689, 5701, 5779, 5821, 5881, 6067, 6217, 6361, 6619, 6871, 7039, 7309, 7489, 7927, 8179, 8221, 8329, 8581, 8641 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
A000040 INTERSECT A309854.
MATHEMATICA
Select[Range[10000], PrimeQ[#]&&PrimeQ[2*(#^5)-1] &] (* Metin Sariyar, Aug 21 2019 *)
CROSSREFS
Cf. A182785 (2*p^4-1 prime), A177104 (2*p^3-1 prime), A309854 (2*n^5-1 prime).
Sequence in context: A229880 A070248 A329010 * A364845 A339582 A232446
KEYWORD
nonn
AUTHOR
R. J. Mathar, Aug 20 2019
STATUS
approved

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Last modified March 28 15:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)