Discussion
2, 9, 28, 65,…217
Answer: D
Correct answer: 126
Each term is one more than a cube: \( 1^3+1=2 \), \( 2^3+1=9 \), \( 3^3+1=28 \), \( 4^3+1=65 \), so the next is \( 5^3+1 = \mathbf{126} \), followed by \( 6^3+1 = 217 \).
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