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A078998 as a simple table

n a(n)
1 1
2 11
3 111
4 1111
5 11111
6 111111
7 1111111
8 11111111
9 111111111
10 12222222121
11 1222222212101
12 122222221210101
13 12222222121010101
14 1222222212101010101
15 122222221210101010101
16 12222222121010101010101

[1,11,111,1111,11111,111111,1111111,11111111,
 111111111,12222222121,1222222212101,
 122222221210101,12222222121010101,
 1222222212101010101,122222221210101010101,
 12222222121010101010101]

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Last modified August 18 00:56 EDT 2019. Contains 326059 sequences. (Running on oeis4.)