A339476 - OEIS

%I #16 Apr 27 2021 01:05:49

%S 2,20753,103613,145091,148829,199103,291491,353453,356579,362753,

%T 367721,475511,521819,527099,552053,603173,609803,639833,691973,

%U 726413,810791,812921,825479,940403,980459,998201,1103549,1117769,1132793,1231883,1329131,1331783

%N Numbers at the start of a run of exactly 3 consecutive primes that are Sophie Germain primes.

%H Jon E. Schoenfield, <a href="/A339476/b339476.txt">Table of n, a(n) for n = 1..10000</a>

%F Apart from a(1) = 2, a(n) == 5 (mod 6). - _Hugo Pfoertner_, Apr 25 2021

%Y Cf. A005384, (Sophie Germain primes), A128825, A338700, A339474, A339475, A339477, A339478.

%K nonn

%O 1,1

%A _Jon E. Schoenfield_, Apr 24 2021