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

Terms

a(0) =3a(1) =7a(2) =13a(3) =47a(4) =109a(5) =139a(6) =251a(7) =397a(8) =457a(9) =587a(10) =659a(11) =733a(12) =1187a(13) =1291a(14) =1399a(15) =2161a(16) =2311a(17) =2621a(18) =2953a(19) =3307a(20) =4073a(21) =4273a(22) =4937a(23) =5167a(24) =5641a(25) =7477a(26) =7759a(27) =10259a(28) =10607a(29) =10957