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A001167 as a simple table

n a(n)
1 1
2 21
3 21000
4 101
5 121
6 1101
7 1121
8 21121
9 101101
10 101121
11 121121
12 1101121
13 1121121
14 21121121
15 101101121
16 101121121
17 121121121
18 1101121121
19 1121121121

[1,21,21000,101,121,1101,1121,21121,101101,101121,
 121121,1101121,1121121,21121121,101101121,
 101121121,121121121,1101121121,1121121121]

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Last modified September 22 12:42 EDT 2019. Contains 327307 sequences. (Running on oeis4.)