Least number having n orderless representations as p^2 + q^2 + r^2, where p, q, and r are primes.

Terms

a(0) =12a(1) =219a(2) =363a(3) =699a(4) =1179a(5) =2019a(6) =2259a(7) =3891a(8) =4059a(9) =6459a(10) =5379a(11) =10899a(12) =13179a(13) =10659a(14) =12579a(15) =21819a(16) =20979a(17) =26859a(18) =34419a(19) =38379a(20) =41019a(21) =61299a(22) =39459a(23) =41811a(24) =82131a(25) =50379a(26) =77451a(27) =71379a(28) =141099a(29) =85491