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A013126 formatted as a simple table:

n a(n)
0 1
1 0
2 4
3 -6
4 19
5 -140
6 814
7 -5082
8 43509
9 -400248
10 3812904
11 -42180270
12 520553895
13 -6701464068
14 92507196786
15 -1398195467970
16 22513722221865
17 -380979724310896
18 6839735642061708
19 -130277805146941014

[1,0,4,-6,19,-140,814,-5082,43509,-400248,3812904,
 -42180270,520553895,-6701464068,92507196786,
 -1398195467970,22513722221865,-380979724310896,
 6839735642061708,-130277805146941014]

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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