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a(n) is the smallest number m such that n^(1/m) = 1.(leading zeros)n...
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%I #1 May 16 2003 03:00:00

%S 3,4,4,28,27,26,25,24,23,22,21,20,19,19,18,18,17,149,16,140,15,15,129,

%T 14,14,120,117,13,112,110,107,12,12,101,99,97,96,11,92,91,89,88,86,85,

%U 10,83,81,80,79,78,77,76,75,74,9,72,71,70,70,69,68,67,67,66,65,64,64,8

%N a(n) is the smallest number m such that n^(1/m) = 1.(leading zeros)n...

%e a(5) = 28 because 5^(1/28) = 1.05.., a(19) = 149 because 19^(1/149) = 1.019...

%K base,nonn

%O 2,1

%A Jonathan Ayres (jonathan.ayres(AT)ntlworld.com), Dec 30 2001