Primes p such that p+5==0 (mod phi(p+5)).

Terms

a(0) =3a(1) =7a(2) =11a(3) =13a(4) =19a(5) =31a(6) =43a(7) =59a(8) =67a(9) =103a(10) =139a(11) =157a(12) =211a(13) =251a(14) =283a(15) =379a(16) =571a(17) =643a(18) =859a(19) =967a(20) =1019a(21) =1291a(22) =1453a(23) =1531a(24) =1723a(25) =3067a(26) =4091a(27) =4603a(28) =5179a(29) =5827