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The first sequence is f(n) = (3n + 2)2 . So the next number is 400.

The second sequence is f(n) = f(n - 1) + 6(sum of values 1 to (n - 1)) + 1, with f(0) = -10. So the next number is 333.

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13y ago
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Anonymous

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4y ago

Reasoning question for, 25, 64, 121 196,Question mark

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Q: Can you Complete the sequences 4 25 64 121 196 289 and -9 -2 17 54 115 206?
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