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A090726
as a simple table
n
a(n)
1
2
2
11
3
101
4
211
5
1021
6
1201
7
2011
8
2111
9
2221
10
10111
11
10211
12
12011
13
12101
14
12211
[2,11,101,211,1021,1201,2011,2111,2221,10111, 10211,12011,12101,12211]