（2+1）（2^2+1）（2^4+1）...（2^2n+1）+1（n是正整数）计算

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（2+1）（2^2+1）（2^4+1）...（2^2n+1）轿启+1
=1*（2+1）（前帆缺慧辩2^2+1）（2^4+1）...（2^2n+1）+1
=(2-1)(2+1)(2^2+1)(2^4+1)......(2^2n+)+1
=(2^2-1)(2^2+1)(2^4+1)......(2^2n+1)+1
=(2^4-1)(2^4+1)........(2^2n+1)+1
=(2^8-1).......(2^2n+1)+1
=(2^2n-1)(2^2n+1)+1
=2^4n-1+1
=2^4n

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=(2-1)（2+1）（2^2+1）（2^4+1）...（2^2^n+1）+1
=(2^2-1)（2^2+1）（镇纳2^4+1）...（2^2^n+1）+1
=(2^4-1)（2^4+1）肆蠢...（御雹没2^2^n+1）+1
=2^2^(n+1)-1+1
=2^2^(n+1)

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