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e π 3 2 σ 3 + e σ + 1 + 2 {\displaystyle {\sqrt {\frac {e^{\pi ^{3}2}}{\sigma ^{3}+e^{\sigma }+1+{\sqrt {2}}}}}}
2 7 − 1 = 127 {\displaystyle 2^{7}-1=127}
