A176119 - OEIS

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A176119 as a simple table

n	a(n)
1	13
2	131303
3	13131317
4	131313137
5	13131313133
6	13131313131329
7	131313131313139
8	1313131313131313083
9	13131313131313131331
10	1313131313131313131333
11	131313131313131313131363

[13,131303,13131317,131313137,13131313133, 13131313131329,131313131313139, 1313131313131313083,13131313131313131331, 1313131313131313131333,131313131313131313131363]