a(n) = 105 written in base n.

Terms

a(1) =1101001a(2) =10220a(3) =1221a(4) =410a(5) =253a(6) =210a(7) =151a(8) =126a(9) =105a(10) =96a(11) =89a(12) =81a(13) =77a(14) =70a(15) =69a(16) =63