Sum of the prime(n) primes following prime(n).

Terms

a(0) =8a(1) =23a(2) =67a(3) =143a(4) =353a(5) =527a(6) =905a(7) =1187a(8) =1751a(9) =2785a(10) =3287a(11) =4691a(12) =5843a(13) =6589a(14) =7947a(15) =10157a(16) =12661a(17) =13787a(18) =16715a(19) =18941a(20) =20325a(21) =23889a(22) =26643a(23) =30771a(24) =36501a(25) =39861a(26) =41937a(27) =45581a(28) =47801a(29) =51749