a(n) = Sum_{i=1..n} prime(n*(i - 1) + i).

Terms

a(0) =2a(1) =9a(2) =36a(3) =99a(4) =224a(5) =407a(6) =724a(7) =1129a(8) =1700a(9) =2451a(10) =3382a(11) =4543a(12) =5986a(13) =7661a(14) =9724a(15) =12041a(16) =14762a(17) =17891a(18) =21482a(19) =25499a(20) =29998a(21) =35083a(22) =40644a(23) =46873a(24) =53620a(25) =61077a(26) =69240a(27) =78119a(28) =87686a(29) =98053