Sum of the first n primes.

Terms

a(0) =0a(1) =2a(2) =5a(3) =10a(4) =17a(5) =28a(6) =41a(7) =58a(8) =77a(9) =100a(10) =129a(11) =160a(12) =197a(13) =238a(14) =281a(15) =328a(16) =381a(17) =440a(18) =501a(19) =568a(20) =639a(21) =712a(22) =791a(23) =874a(24) =963a(25) =1060a(26) =1161a(27) =1264a(28) =1371a(29) =1480