Terms are n(n+1) (2, 6, 12, 20, 30, ?)

The same question, asked 2 times: 15 Sep 2025 S3, 18 Sep 2025 S2. Every wording below, oldest first.

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Question 1
15 Sep 2025 S3
18 $What comes next in the series: 2, 6, 12, 20, 30, ?$
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Question 2
18 Sep 2025 S2
11 $What comes at the place of question mark: 2, 6, 12, 20, 30, ?$
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