A050991
formatted as a simple table:
n
a(n)
1
9
2
15
3
21
4
33
5
39
6
51
7
57
8
63
9
69
10
87
11
93
12
111
13
123
14
129
15
141
16
159
17
177
18
183
19
195
20
201
[9,15,21,33,39,51,57,63,69,87,93,111,123,129,141, 159,177,183,195,201]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
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