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A094625
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Palindromic sequence whose n-th term digits sum to 2n.
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2
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0, 2, 22, 33, 242, 343, 2442, 3443, 24442, 34443, 244442, 344443, 2444442, 3444443, 24444442, 34444443, 244444442, 344444443, 2444444442, 3444444443, 24444444442, 34444444443, 244444444442, 344444444443, 2444444444442
(list; graph; refs; listen; history; internal format)
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