? - 1 = 6, 3, 5, 7, 8, ? - 5 = 0, 2, 5, 6, 7, 13 - ? = 11, 2, 3, 4, 12, 4 - ? = 2, 1, 2, 3, 6, 5 - ? = 3, 2, 7, 8, 17, ? - 13 = 3, 9, 13, 16, 17, ? - 18 = 1, 12, 14, 19, 20, 9 - ? = 2, 2, 7, 12, 17, 11 - ? = 8, 1, 3, 4, 6, ? - 15 = 5, 17, 18, 19, 20

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