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A044421
Numbers n such that string 8,9 occurs in the base 10 representation of n but not of n-1.
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89, 189, 289, 389, 489, 589, 689, 789, 889, 989, 1089, 1189, 1289, 1389, 1489, 1589, 1689, 1789, 1889, 1989, 2089, 2189, 2289, 2389, 2489, 2589, 2689, 2789, 2889, 2989, 3089, 3189, 3289, 3389, 3489, 3589, 3689, 3789, 3889
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Maintained by
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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.
AT&T Labs Research
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