a(n) = next prime after n^4.

Terms

a(0) =2a(1) =17a(2) =83a(3) =257a(4) =631a(5) =1297a(6) =2411a(7) =4099a(8) =6563a(9) =10007a(10) =14653a(11) =20743a(12) =28571a(13) =38431a(14) =50627a(15) =65537a(16) =83537a(17) =104987a(18) =130337a(19) =160001a(20) =194483a(21) =234259a(22) =279847a(23) =331777a(24) =390647a(25) =456979a(26) =531457a(27) =614657a(28) =707293a(29) =810013