56, 27, 14.5, 6.25, ?, 1.0625
56 ÷ 2 – 1 = 27 27 ÷ 2 + 1 = 14.5 14.5 ÷ 2 – 1 = 6.25 6.25 ÷ 2 + 1 = 4.125 4.125 ÷ 2 – 1 = 1.0625
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