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A205960 as a simple table

n a(n)
1 1
2 11
3 3
4 13
5 5
6 15
7 7
8 17
9 9
10 19
11 29
12 39
13 49
14 59
15 69
16 79
17 89
18 99
19 199
20 299
21 399
22 499
23 599
24 699
25 799
26 899
27 999
28 1999
29 2999
30 3999
31 4999
32 5999
33 6999
34 7999
35 8999
36 9999
37 19999
38 29999
39 39999
40 49999
41 59999
42 69999
43 79999
44 89999
45 99999
46 199999
47 299999
48 399999
49 499999

[1,11,3,13,5,15,7,17,9,19,29,39,49,59,69,79,89,99,
 199,299,399,499,599,699,799,899,999,1999,2999,
 3999,4999,5999,6999,7999,8999,9999,19999,29999,
 39999,49999,59999,69999,79999,89999,99999,199999,
 299999,399999,499999]

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Last modified August 22 02:44 EDT 2019. Contains 326169 sequences. (Running on oeis4.)