

A125272


Primes p such that 3p  2 and 3p + 2 are also primes.


18



3, 5, 7, 13, 23, 37, 43, 103, 127, 163, 167, 257, 293, 313, 337, 433, 523, 757, 797, 887, 953, 1013, 1063, 1153, 1283, 1303, 1307, 1483, 1597, 1657, 1667, 1693, 1723, 1783, 1913, 2003, 2333, 2347, 2557, 2897, 2927, 3067, 3533, 3823, 3943, 4003, 4013, 4093
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


LINKS



FORMULA



MATHEMATICA

Select[Prime[Range[600]], AllTrue[3#+{2, 2}, PrimeQ]&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, May 29 2021 *)


PROG

(Magma) [p: p in PrimesUpTo(70000) IsPrime(3*p2)and IsPrime(3*p+2)] // Vincenzo Librandi, Jan 29 2011


CROSSREFS



KEYWORD

nonn,easy


AUTHOR



STATUS

approved



