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Cel mai inteligent răspuns!
2014-11-05T19:31:49+02:00
Notez x=2n+1
1+3+5+...+2n+1=2n*n /2 =n² ,deci n² =  16^{1006} => n= 16^{503}  2^{2012}
Deci x= 2* 2^{2012} +1 =  2^{2013} +1 .

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