A046519 - OEIS

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A046519 as a simple table

n	a(n)
1	7
2	13
3	103
4	1009
5	10009
6	100003
7	1000003
8	10000121
9	100000039
10	1000000009
11	10000000033
12	100000000003
13	1000000000039
14	10000000000411
15	100000000000067
16	1000000000000487
17	10000000000000481
18	100000000000000003

[7,13,103,1009,10009,100003,1000003,10000121, 100000039,1000000009,10000000033,100000000003, 1000000000039,10000000000411,100000000000067, 1000000000000487,10000000000000481, 100000000000000003]