Arithmetic, 6, 12, 18, 24, 50, 45, 40, 35, −4, −1, 2, 5, 100, 90, 80, 70, Not Arithmetic, 1, 3, 9, 27, 2, 5, 10, 17, 1, 1, 2, 3, 5, 3, 6, 12, 24

Arithmetic or Not?

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