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A007802
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Numbers n such that game of n X n Button Madness need have no solution.
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1
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3, 5, 17, 31, 127, 257, 511, 683, 2047, 2731, 3277, 3641, 8191, 43691, 52429, 61681, 65537, 85489, 131071, 174763, 178481, 233017, 253241, 256999, 486737
(list; graph; refs; listen; history; internal format)
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