Largest number that is not a sum of n distinct primes, or -1 if such a number does not exist.

Terms

a(0) =-1a(1) =-1a(2) =17a(3) =30a(4) =41a(5) =60a(6) =83a(7) =102a(8) =137a(9) =162a(10) =203a(11) =244a(12) =293a(13) =334a(14) =389a(15) =448a(16) =515a(17) =574a(18) =647a(19) =724a(20) =803a(21) =884a(22) =977a(23) =1066a(24) =1163a(25) =1276a(26) =1373a(27) =1492a(28) =1607a(29) =1738