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Hint
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Answer
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Prime numbers
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2, 3, 5, 7, 11
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Square numbers
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1, 4, 9, 16, 25
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Cube numbers
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1, 8, 27, 64, 125
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Fibonacci sequence
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1, 1, 2, 3, 5
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Triangular numbers
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1, 3, 6, 10, 15
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Tetrahedral numbers
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1, 4, 10, 20, 35
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Digits of pi
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3, 1, 4, 1, 5
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Multiples of 17
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17, 34, 51, 68, 85
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Factors of 75
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1, 3, 5, 15, 25
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Powers of 2
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2, 4, 8, 16, 32
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Powers of 3
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3, 9, 27, 81, 243
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Powers of 5
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5, 25, 125, 625, 3125
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4n+3
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7, 11, 15, 19, 23
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3n²+5
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8, 17, 32, 53, 80
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n!
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1, 2, 6, 24, 120
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