%I A098174
%S A098174 1,4,9,2,3,4,5,8,16,1,1,1,1,1,1,1,1,1,1,4,4,3,3,3,3,3,3,5,7,9,25,2,2,2,
%T A098174 2,2,2,2,2,2,2,2,2,2,5,11,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,
               5,
%U A098174 5,5,5,6,6,6,6,7,7,7,8,8,9,9,10,10,11,12,13,14,16,18,20,23,27,32,40,53
%N A098174 Smallest e>0 such that the initial digit of n^e = 1 in decimal representation.
%C A098174 A000030(n^a(n)) = 1; A098175(n) = n^a(n).
%Y A098174 Sequence in context: A032760 A129970 A006830 this_sequence A126709 A125575 
               A021071
%Y A098174 Adjacent sequences: A098171 A098172 A098173 this_sequence A098175 A098176 
               A098177
%K A098174 nonn,base
%O A098174 1,2
%A A098174 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 30 2004