A060021
formatted as a simple table:
n
a(n)
2
1
3
1
4
2
5
2
6
3
7
3
8
4
9
4
10
4
11
5
12
5
13
5
14
6
15
6
16
7
17
6
18
8
19
7
20
9
[1,1,2,2,3,3,4,4,4,5,5,5,6,6,7,6,8,7,9]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 21 10:15 EST 2009. Contains 171081 sequences.
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