Search: id:A073601
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%I A073601
%S A073601 2,8,18,6,24,10,20,11,22,2,2,2,2,2,6,5,5,4,4,8,20,4,4,9,6,8,8,3,3,18,
%T A073601 48,3,3,3,12,10,8,6,6,6,6,9,20,15,4,4,4,20,14,24,18,8,19,16,5,5,34,18,
%U A073601 10,10,15,25,6,6,17,12,7,7,26,20,21,8,23,24,9,18,10,29
%N A073601 Least k>1 such that n^k and n have equal leading decimal digits.
%C A073601 A073600(n) = n^a(n);
%C A073601 A000030(n^a(n)) = A000030(n).
%e A073601 a(4)=6, as 4^6=4096=A073600(4) is the least power of 4 with initial digit 
               =4: 4^2=16, 4^3=64, 4^4=256 and 4^5=1024.
%Y A073601 Cf. A051248.
%Y A073601 Sequence in context: A061150 A160189 A154349 this_sequence A051248 A063664 
               A094147
%Y A073601 Adjacent sequences: A073598 A073599 A073600 this_sequence A073602 A073603 
               A073604
%K A073601 nonn,base
%O A073601 1,1
%A A073601 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 04 2002

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