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A115939
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Numbers n such that the n-th triangular number contains each of the 10 decimal digits exactly once.
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2
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46097, 49796, 50139, 55151, 55484, 56520, 58050, 62495, 62567, 62900, 66294, 68805, 69542, 70766, 72594, 73737, 73971, 74168, 74357, 75555, 76364, 77805, 78686, 78848, 84555, 85959, 86076, 87263, 87669, 88406, 89883, 90287, 90297
(list; graph; refs; listen; history; internal format)
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