Question
2 5 16 65 326
? What will come in place of the question mark (?) in each of the following series?Solution
2 × 2 + 1 = 5 5 × 3 + 1 = 16 16 × 4 + 1 = 65 65 × 5 + 1 = 326 326 × 6 + 1 = 1957
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