Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are < p/2.

Terms

a(0) =1a(1) =13a(2) =32a(3) =137a(4) =306a(5) =314a(6) =555a(7) =876a(8) =1400a(9) =1416a(10) =1742a(11) =2450a(12) =3099a(13) =3788a(14) =4816a(15) =5430a(16) =6351a(17) =7344a(18) =8393a(19) =9546a(20) =12858a(21) =13373a(22) =15265a(23) =17277a(24) =16311a(25) =18403a(26) =19521a(27) =22344a(28) =21805a(29) =23590