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A127199
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A monotonic doubly-fractal simple sequence. Erase the last (rightmost) digit of every integer: what is left is the sequence itself. The erased digits, one by one, form also the sequence itself.
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3
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1, 2, 11, 21, 112, 211, 1121, 2111, 11212, 21112, 112121, 211121, 1121211, 2111211, 11212112, 21112111, 112121122, 211121111, 1121211221, 2111211111
(list; graph; refs; listen; history; internal format)
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