"Sum of n first primes" minus "sum of first n nonprimes".

Terms

a(0) =1a(1) =0a(2) =-1a(3) =-2a(4) =0a(5) =3a(6) =8a(7) =13a(8) =21a(9) =34a(10) =47a(11) =64a(12) =84a(13) =105a(14) =128a(15) =156a(16) =189a(17) =223a(18) =262a(19) =303a(20) =344a(21) =390a(22) =439a(23) =493a(24) =554a(25) =617a(26) =681a(27) =748a(28) =815a(29) =884