Divide primes into groups with prime(n) elements and add together.

Terms

a(0) =5a(1) =23a(2) =101a(3) =311a(4) =931a(5) =1895a(6) =3875a(7) =6349a(8) =10643a(9) =18335a(10) =25873a(11) =39593a(12) =55607a(13) =71301a(14) =94559a(15) =127315a(16) =167495a(17) =204063a(18) =258283a(19) =315087a(20) =369749a(21) =451635a(22) =533015a(23) =640097a(24) =779283a(25) =902789a(26) =1013795a(27) =1159073a(28) =1295871a(29) =1457935