A097509
formatted as a simple table:
n
a(n)
0
3
1
2
2
3
3
2
4
3
5
2
6
2
7
3
8
2
9
3
10
2
11
2
12
3
13
2
14
3
15
2
16
3
17
2
18
2
19
3
20
2
21
3
[3,2,3,2,3,2,2,3,2,3,2,2,3,2,3,2,3,2,2,3,2,3]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 27 14:50 EST 2009. Contains 167570 sequences.
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