Least prime p such that there exists a prime q with p-2n = q.

Terms

a(0) =2a(1) =5a(2) =7a(3) =11a(4) =11a(5) =13a(6) =17a(7) =17a(8) =19a(9) =23a(10) =23a(11) =29a(12) =29a(13) =29a(14) =31a(15) =37a(16) =37a(17) =37a(18) =41a(19) =41a(20) =43a(21) =47a(22) =47a(23) =53a(24) =53a(25) =53a(26) =59a(27) =59a(28) =59a(29) =61