A071109
formatted as a simple table:
n
a(n)
0
1
1
-2
2
2
3
-6
4
14
5
-26
6
50
7
-102
8
214
9
-426
10
834
11
-1678
12
3398
13
-6778
14
13482
15
-27022
[1,-2,2,-6,14,-26,50,-102,214,-426,834,-1678,3398, -6778,13482,-27022]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 1 19:22 EST 2009. Contains 167811 sequences.
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