A047840
formatted as a simple table:
n
a(n)
1
0
2
0
3
3
4
4
5
6
6
4
7
13
8
13
9
7
10
16
11
8
12
23
13
36
14
58
15
62
16
99
17
172
18
281
[0,0,3,4,6,4,13,13,7,16,8,23,36,58,62,99,172,281]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 20 00:58 EST 2009. Contains 171054 sequences.
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