A011758
formatted as a simple table:
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
-1
7
-1
8
1
9
1
10
-1
11
1
12
-1
13
1
[1,1,1,1,1,-1,-1,1,1,-1,1,-1,1]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 2 11:54 EST 2009. Contains 167921 sequences.
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