Primes p, with index k, such that p-k and p+k are both prime.

Terms

a(0) =7a(1) =13a(2) =61a(3) =181a(4) =317a(5) =827a(6) =1831a(7) =2657a(8) =2801a(9) =3181a(10) =3739a(11) =4093a(12) =4561a(13) =5011a(14) =5443a(15) =5531a(16) =5653a(17) =6359a(18) =6659a(19) =9029a(20) =10729a(21) =11383a(22) =13109a(23) =13907a(24) =14489a(25) =15217a(26) =15859a(27) =16603a(28) =17581a(29) =20393