2, 9, 28, 65, 126, .....?

Series pattern 13 + 1, 33 + 1, 43 + 1, 53 + 1 ∴ Missing term = 63 + 1 = 217

Correct Answer: 217

Explanation:

Series pattern
1³ + 1, 3³ + 1, 4³ + 1, 5³ + 1
∴ Missing term = 6³ + 1 = 217

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