Sum of primitive roots of n-th prime.

Terms

a(0) =1a(1) =2a(2) =5a(3) =8a(4) =23a(5) =26a(6) =68a(7) =57a(8) =139a(9) =174a(10) =123a(11) =222a(12) =328a(13) =257a(14) =612a(15) =636a(16) =886a(17) =488a(18) =669a(19) =1064a(20) =876a(21) =1105a(22) =1744a(23) =1780a(24) =1552a(25) =2020a(26) =1853a(27) =2890a(28) =1962a(29) =2712