Primes of the form Sum_{k=1..n} phi(prime(k)).

Terms

a(0) =3a(1) =7a(2) =13a(3) =23a(4) =149a(5) =313a(6) =619a(7) =691a(8) =769a(9) =1237a(10) =1451a(11) =4391a(12) =7639a(13) =9787a(14) =11527a(15) =19489a(16) =21943a(17) =27997a(18) =32869a(19) =35449a(20) =36107a(21) =36767a(22) =46817a(23) =49939a(24) =55691a(25) =56543a(26) =59119a(27) =61757a(28) =69127a(29) =70079