Primes p such that p, p+6, p+12, p+18 are consecutive primes and p = 6*k+1 for some k.

Terms

a(0) =1741a(1) =3301a(2) =5101a(3) =6361a(4) =15901a(5) =18211a(6) =19471a(7) =30091a(8) =30631a(9) =53611a(10) =63691a(11) =71341a(12) =77551a(13) =80911a(14) =83431a(15) =89101a(16) =91291a(17) =95911a(18) =105361a(19) =105601a(20) =108631a(21) =119551a(22) =120811a(23) =130681a(24) =141061a(25) =144241a(26) =152941a(27) =172981a(28) =186871a(29) =206191