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

Terms

a(0) =2a(1) =20753a(2) =103613a(3) =145091a(4) =148829a(5) =199103a(6) =291491a(7) =353453a(8) =356579a(9) =362753a(10) =367721a(11) =475511a(12) =521819a(13) =527099a(14) =552053a(15) =603173a(16) =609803a(17) =639833a(18) =691973a(19) =726413a(20) =810791a(21) =812921a(22) =825479a(23) =940403a(24) =980459a(25) =998201a(26) =1103549a(27) =1117769a(28) =1132793a(29) =1231883