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A258452
as a simple table
n
a(n)
1
9
2
11
3
21
4
23
5
45
6
65
7
79
8
153
9
155
10
199
11
361
12
799
13
883
14
1237
15
1253
16
1753
17
4975
18
5117
19
5843
20
8179
21
12831
[9,11,21,23,45,65,79,153,155,199,361,799,883,1237, 1253,1753,4975,5117,5843,8179,12831]