A088275
formatted as a simple table:
n
a(n)
1
1
2
2
3
3
4
4
5
9
6
18
7
22
8
45
9
49
10
56
11
69
12
146
13
202
14
272
15
2730
16
2841
17
4562
18
31810
19
43186
20
48109
[1,2,3,4,9,18,22,45,49,56,69,146,202,272,2730, 2841,4562,31810,43186,48109]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
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