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A013341 as a simple table

n a(n)
0 1
1 0
2 1
3 -3
4 9
5 -53
6 315
7 -2149
8 17409
9 -156617
10 1563219
11 -17208081
12 206502945
13 -2684228909
14 37580441899
15 -563709546373
16 9019300106369
17 -153328265590929
18 2759909907247651
19 -52438275521652889
20 1048765530491448353
21 -22024076635965333173
22 484529682070755145979

[1,0,1,-3,9,-53,315,-2149,17409,-156617,1563219,
 -17208081,206502945,-2684228909,37580441899,
 -563709546373,9019300106369,-153328265590929,
 2759909907247651,-52438275521652889,
 1048765530491448353,-22024076635965333173,
 484529682070755145979]

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Last modified September 26 05:07 EDT 2021. Contains 347664 sequences. (Running on oeis4.)