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應是222 看加數,第一個數跟第二個數差1,第二個數跟第三個數差2,往後依次是差5,10,17,26,37,50,再看這些數是1,2,5,10,17,26,37,50,每個相差1,3,5,7,9,11,13,明白了吧 第九個數跟第十個數應差50+15=65157+65=222
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