Primes p such that p+7 == 0 (mod phi(p+7)).

Terms

a(0) =5a(1) =11a(2) =17a(3) =29a(4) =41a(5) =47a(6) =89a(7) =101a(8) =137a(9) =281a(10) =317a(11) =479a(12) =569a(13) =641a(14) =761a(15) =857a(16) =1289a(17) =1451a(18) =1721a(19) =2297a(20) =2909a(21) =3449a(22) =3881a(23) =8741a(24) =9209a(25) =11657a(26) =12281a(27) =17489a(28) =23321a(29) =26237