Semiprimes that are the sum of the first n odd primes for some n.

Terms

a(0) =15a(1) =26a(2) =39a(3) =158a(4) =326a(5) =566a(6) =789a(7) =961a(8) =1159a(9) =1262a(10) =1369a(11) =1478a(12) =1591a(13) =1718a(14) =1849a(15) =2582a(16) =3085a(17) =3829a(18) =4659a(19) =5587a(20) =7697a(21) =8891a(22) =10189a(23) =13885a(24) =14695a(25) =16838a(26) =17281a(27) =18187a(28) =19111a(29) =20057