Smallest power of n with initial digit = 1 in decimal representation.

Terms

a(0) =1a(1) =16a(2) =19683a(3) =16a(4) =125a(5) =1296a(6) =16807a(7) =16777216a(9) =10a(10) =11a(11) =12a(12) =13a(13) =14a(14) =15a(15) =16a(16) =17a(17) =18a(18) =19a(19) =160000a(20) =194481a(21) =10648a(22) =12167a(23) =13824a(24) =15625a(25) =17576a(26) =19683a(27) =17210368a(28) =17249876309