Question
2, 12, 90, 240, ?,
1260 What should come in the place of the Question mark (?) in the following number series?Solution
1⁴ + 12 = 2 2⁴ - 2² = 12 3⁴ + 3² = 90 4⁴ - 4² = 240 5⁴ + 5² = 650 6⁴ - 6² = 1260
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