2,5,14,29,86,( ) A,159 B,162 C,169 D,173

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2,5,14,29,86,( ) A,159 B,162 C,169 D,173

2,5,14,29,86,( ) A,159 B,162 C,169 D,173
2,5,14,29,86,( ) A,159 B,162 C,169 D,173

2,5,14,29,86,( ) A,159 B,162 C,169 D,173
答案:D.173
原因:2x2+1=5 14x2+1=29 所以86x2+1=173