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4/216^-2/3+1/256^-3/4+2/243^-1/5

$\frac{4}{{(216)}^{\frac{- 2}{3}}} + \frac{1}{{(256)}^{\frac{- 3}{4}}} + \frac{2}{{(243)}^{\frac{- 1}{5}}} = \frac{4}{{(6^{3})}^{\frac{- 2}{3}}} + \frac{1}{{(4^{4})}^{\frac{- 3}{4}}} + \frac{2}{{(3^{5})}^{\frac{- 1}{5}}} = \frac{4}{6^{- 2}} + \frac{1}{4^{- 3}} + \frac{2}{3^{- 1}} = 4 \times 6^{2} + 4^{3} + 2 \times 3^{1} = 4 \times 36 + 64 + 6 = 214$

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