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A131970 as a simple table

n a(n)
0 1
1 122
2 12222
3 1222222
4 122222222
5 12222222222
6 1222222222222
7 122222222222222
8 12222222222222222
9 1222222222222222222
10 122222222222222222222
11 12222222222222222222222 

[1,122,12222,1222222,122222222,12222222222,
 1222222222222,122222222222222,12222222222222222,
 1222222222222222222,122222222222222222222,
 12222222222222222222222]

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Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)