Numbers n such that n is a twin prime and 2n + 1 is a twin prime.

Terms

a(0) =3a(1) =5a(2) =29a(3) =659a(4) =809a(5) =2129a(6) =2549a(7) =3329a(8) =3389a(9) =5849a(10) =6269a(11) =10529a(12) =33179a(13) =41609a(14) =44129a(15) =53549a(16) =55439a(17) =57329a(18) =63839a(19) =65099a(20) =70379a(21) =70979a(22) =72269a(23) =74099a(24) =74759a(25) =78779a(26) =80669a(27) =81929a(28) =87539a(29) =93239