Divisors of 10^15 - 1.

Terms

a(0) =1a(1) =3a(2) =9a(3) =27a(4) =31a(5) =37a(6) =41a(7) =93a(8) =111a(9) =123a(10) =271a(11) =279a(12) =333a(13) =369a(14) =813a(15) =837a(16) =999a(17) =1107a(18) =1147a(19) =1271a(20) =1517a(21) =2439a(22) =3441a(23) =3813a(24) =4551a(25) =7317a(26) =8401a(27) =10027a(28) =10323a(29) =11111