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A304290 as a simple table

n a(n)
1 9
2 37
3 99
4 370
5 999
6 3367
7 9999
8 22186
9 99999
10 221860
11 333667
12 625001
13 625009
14 859415
15 926968
16 999999
17 1507152
18 3125001
19 3701562
20 7012141
21 9375009
22 9999999
23 20506249
24 28658098
25 33336667
26 46875009
27 78125001
28 79632152
29 86609391
30 98089448
31 99999999
32 306481073

[9,37,99,370,999,3367,9999,22186,99999,221860,
 333667,625001,625009,859415,926968,999999,1507152,
 3125001,3701562,7012141,9375009,9999999,20506249,
 28658098,33336667,46875009,78125001,79632152,
 86609391,98089448,99999999,306481073]

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Last modified November 20 17:09 EST 2019. Contains 329337 sequences. (Running on oeis4.)