A140253
formatted as a simple table:
n
a(n)
0
-1
1
1
2
2
3
7
4
14
5
31
6
62
7
127
8
254
9
511
10
1022
11
2047
12
4094
13
8191
14
16382
[-1,1,2,7,14,31,62,127,254,511,1022,2047,4094, 8191,16382]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.
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