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Search: id:A119145
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| A119145 |
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Numbers n such that the n-th triangular number contains only digits {1,6,9}. |
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3
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| 1, 3, 11, 13, 36, 1386, 1411, 1543, 438433, 445241, 5685366, 19849388, 36385963, 154671711, 199808366, 1408518133, 3497461911, 184180138433, 1350308625456, 4892835517288, 11505747426366, 118253893522536, 447137831091711
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