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A088621
as a simple table
n
a(n)
1
11
2
0
3
13
4
0
5
0
6
0
7
17
8
0
9
19
10
0
11
111121
12
0
13
113
14
0
15
0
16
0
[11,0,13,0,0,0,17,0,19,0,111121,0,113,0,0,0]