a(n) = sum of the first n upper twin primes.

Terms

a(0) =5a(1) =12a(2) =25a(3) =44a(4) =75a(5) =118a(6) =179a(7) =252a(8) =355a(9) =464a(10) =603a(11) =754a(12) =935a(13) =1128a(14) =1327a(15) =1556a(16) =1797a(17) =2068a(18) =2351a(19) =2664a(20) =3013a(21) =3434a(22) =3867a(23) =4330a(24) =4853a(25) =5424a(26) =6025a(27) =6644a(28) =7287a(29) =7948