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Search: id:A135475
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| A135475 |
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Sorted list of strings that can be obtained by starting with 123 and repeatedly doubling any substring in place. |
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| 123, 1123, 1223, 1233, 11123, 11223, 11233, 12123, 12223, 12233, 12323, 12333, 111123
(list; graph; listen)
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