Search: id:A097374
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%I A097374
%S A097374 1,4,16,27,356,3125,46656
%N A097374 Perfect 4-composites: a perfect 4-composite is a natural number that 
               can be represented in the form a^(a^(a^........(a^(a) ) ) ) for some 
               natural number 'a'.
%e A097374 a(3) = 16 since 16 = 2^(2^(2)) and only two perfect 4-powers lie below 
               it.
%Y A097374 Sequence in context: A067688 A046358 A046366 this_sequence A046361 A017569 
               A161335
%Y A097374 Adjacent sequences: A097371 A097372 A097373 this_sequence A097375 A097376 
               A097377
%K A097374 nonn
%O A097374 1,2
%A A097374 Ashutosh (ashu(AT)iitk.ac.in), Sep 18 2004

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