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Search: id:A037487
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| A037487 |
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Base 10 digits are, in order, the first n terms of the periodic sequence with initial period 1,2. |
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+0 2
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| 1, 12, 121, 1212, 12121, 121212, 1212121, 12121212, 121212121, 1212121212, 12121212121, 121212121212, 1212121212121, 12121212121212, 121212121212121, 1212121212121212
(list; graph; listen)
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