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A293140 as a simple table

n a(n)
0 1
1 -1
2 -2
3 0
4 0
5 120
6 0
7 5040
8 0
9 0
10 0
11 0
12 -479001600
13 0
14 0
15 -1307674368000
16 0
17 0
18 0
19 0
20 0
21 0
22 1124000727777607680000
23 0
24 0
25 0
26 403291461126605635584000000
27 0
28 0
29 0
30 0
31 0
32 0
33 0
34 0
35 -10333147966386144929666651337523200000000
36 0
37 0
38 0
39 0

[1,-1,-2,0,0,120,0,5040,0,0,0,0,-479001600,0,0,
 -1307674368000,0,0,0,0,0,0,1124000727777607680000,
 0,0,0,403291461126605635584000000,0,0,0,0,0,0,0,0,
 -10333147966386144929666651337523200000000,0,0,0,
 0]

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Last modified August 10 04:49 EDT 2022. Contains 356029 sequences. (Running on oeis4.)