Primes of the form 4*k^3 - 1.

Terms

a(0) =3a(1) =31a(2) =107a(3) =499a(4) =863a(5) =5323a(6) =6911a(7) =13499a(8) =23327a(9) =107999a(10) =131071a(11) =364499a(12) =442367a(13) =530603a(14) =1000187a(15) =1149983a(16) =2634011a(17) =2915999a(18) =3764767a(19) =4121203a(20) =5771587a(21) =6243583a(22) =7263391a(23) =7812499a(24) =9199871a(25) =13499999a(26) =14326307a(27) =14895499a(28) =15185663a(29) =16693123