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A243630 Primes p such that 2*p^3 - 3 is also prime. 2

%I #9 Sep 08 2022 08:46:08

%S 2,7,11,13,47,101,107,151,163,167,251,257,401,443,467,521,571,641,653,

%T 673,797,907,911,971,983,997,1013,1151,1153,1181,1187,1223,1231,1277,

%U 1291,1303,1361,1433,1481,1511,1597,1637,1723,1741,1811,1951,2027,2081,2083,2141,2287,2311

%N Primes p such that 2*p^3 - 3 is also prime.

%H Vincenzo Librandi, <a href="/A243630/b243630.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[2500]], PrimeQ[2 #^3 - 3] &]

%o (Magma) [p: p in PrimesUpTo(2500) | IsPrime(2*p^3 - 3)];

%Y Cf. A063908, A023204, A153507, A174363, A243595.

%K nonn,easy,less

%O 1,1

%A _Vincenzo Librandi_, Jun 08 2014

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Last modified April 19 05:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)