Double-safe primes which are also double-Sophie Germain primes.

Terms

a(0) =11a(1) =359a(2) =719a(3) =214559a(4) =215399a(5) =245639a(6) =253679a(7) =266999a(8) =507359a(9) =508559a(10) =574439a(11) =670919a(12) =744599a(13) =825479a(14) =1017119a(15) =1072199a(16) =1184399a(17) =1363679a(18) =1621079a(19) =1688279a(20) =1786439a(21) =2156039a(22) =2377799a(23) =2429279a(24) =2633399a(25) =2684999a(26) =2900039a(27) =3103799