A004137
formatted as a simple table:
n
a(n)
1
0
2
1
3
3
4
6
5
9
6
13
7
17
8
23
9
29
10
36
11
43
12
50
13
58
14
68
15
79
16
90
17
101
18
112
19
123
20
138
21
153
[0,1,3,6,9,13,17,23,29,36,43,50,58,68,79,90,101, 112,123,138,153]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 5 08:23 EST 2009. Contains 170348 sequences.
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