Composite numbers arising as sum of first k primes.

Terms

a(0) =10a(1) =28a(2) =58a(3) =77a(4) =100a(5) =129a(6) =160a(7) =238a(8) =328a(9) =381a(10) =440a(11) =501a(12) =568a(13) =639a(14) =712a(15) =791a(16) =874a(17) =963a(18) =1060a(19) =1161a(20) =1264a(21) =1371a(22) =1480a(23) =1593a(24) =1720a(25) =1851a(26) =1988a(27) =2127a(28) =2276a(29) =2427