(Translated by https://www.hiragana.jp/)
A115779 - OEIS
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A115779 as a simple table

na(n)
01
10
211
315
4111
5121
61011
71111
82011
911111
1016111
11111111
12131011
131011111
141111111
152011111
1611111111
1716111111
18111111111
19131111111
201011111111
211111111111
222111111111
2311111111111

[1,0,11,15,111,121,1011,1111,2011,11111,16111,
 111111,131011,1011111,1111111,2011111,11111111,
 16111111,111111111,131111111,1011111111,
 1111111111,2111111111,11111111111]