Primes of the form 10n^3-9.

Terms

a(0) =71a(1) =631a(2) =21961a(3) =27431a(4) =49121a(5) =68581a(6) =121661a(7) =156241a(8) =393031a(9) =428741a(10) =689201a(11) =851831a(12) =1406071a(13) =1488761a(14) =2621431a(15) =3007621a(16) =4052231a(17) =4930381a(18) =5513671a(19) =5717861a(20) =6360551a(21) =7049681a(22) =7535701a(23) =7786871a(24) =9999991a(25) =11248631a(26) =13309991a(27) =15208741