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A126969 as a simple table

n a(n)
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 11
11 12
12 13
13 21
14 111
15 311
16 2111
17 11111
18 11112
19 11113
20 11114
21 31111 

[0,1,2,3,4,5,6,7,8,9,11,12,13,21,111,311,2111,
 11111,11112,11113,11114,31111]

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)