Primes of the form p^3 + q^3 + r^3, where p, q and r are primes.

Terms

a(0) =43a(1) =179a(2) =277a(3) =359a(4) =397a(5) =593a(6) =811a(7) =1483a(8) =2017a(9) =2213a(10) =2251a(11) =2447a(12) =2689a(13) =4421a(14) =4519a(15) =4967a(16) =5381a(17) =6271a(18) =7109a(19) =7229a(20) =9181a(21) =9521a(22) =10169a(23) =11897a(24) =12853a(25) =13103a(26) =13841a(27) =14489a(28) =16561a(29) =17107