100 written in base n, or -1 if the representation requires digits outside of 0 to 9.

Terms

a(1) =1100100a(2) =10201a(3) =1210a(4) =400a(5) =244a(6) =202a(7) =144a(8) =121a(9) =100a(10) =91a(11) =84a(12) =79a(13) =72a(14) =-1a(15) =64a(16) =-1a(17) =-1a(18) =55a(19) =50a(20) =-1a(21) =-1a(22) =48a(23) =44a(24) =40a(25) =-1a(26) =-1a(27) =-1a(28) =-1a(29) =-1a(30) =37