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A073866 as a simple table

n a(n)
1 4
2 6
3 8
4 9
5 28
6 39
7 68
8 69
9 88
10 99
11 299
12 399
13 589
14 699
15 799
16 899
17 999
18 2899
19 3999
20 5999
21 6999
22 7999
23 9899
24 9999
25 29999
26 39999
27 58999
28 69999
29 89999
30 99999
31 299899
32 399999
33 499999
34 689999
35 699999
36 889999
37 999999
38 1999999
39 3899999
40 3999999
41 5899999
42 6999999
43 8999999
44 9999999

[4,6,8,9,28,39,68,69,88,99,299,399,589,699,799,
 899,999,2899,3999,5999,6999,7999,9899,9999,29999,
 39999,58999,69999,89999,99999,299899,399999,
 499999,689999,699999,889999,999999,1999999,
 3899999,3999999,5899999,6999999,8999999,9999999]

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Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)