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A098129 as a simple table

n a(n)
1 1
2 122
3 122333
4 1223334444
5 122333444455555
6 122333444455555666666
7 1223334444555556666667777777
8 122333444455555666666777777788888888
9 122333444455555666666777777788888888999999999 

[1,122,122333,1223334444,122333444455555,
 122333444455555666666,
 1223334444555556666667777777,
 122333444455555666666777777788888888,
 122333444455555666666777777788888888999999999]

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Last modified August 7 13:33 EDT 2024. Contains 375013 sequences. (Running on oeis4.)