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A094674 as a simple table

n a(n)
0 1
1 -1
2 1
3 0
4 3
5 -6
6 0
7 -15
8 1
9 0
10 45
11 0
12 105
13 -15
14 0
15 -420
16 0
17 -945
18 1
19 0
20 210
21 0
22 4725
23 0
24 10395
25 -28
26 0
27 -3150
28 0
29 -62370
30 0
31 -135135
32 1
33 0
34 630
35 0
36 51975
37 0
38 945945
39 0
40 2027025
41 -45
42 0
43 -13860
44 0
45 -945945
46 0
47 -16216200
48 0
49 -34459425
50 1
51 0
52 1485
53 0
54 315315
55 0
56 18918900
57 0

[1,-1,1,0,3,-6,0,-15,1,0,45,0,105,-15,0,-420,0,
 -945,1,0,210,0,4725,0,10395,-28,0,-3150,0,-62370,
 0,-135135,1,0,630,0,51975,0,945945,0,2027025,-45,
 0,-13860,0,-945945,0,-16216200,0,-34459425,1,0,
 1485,0,315315,0,18918900,0]

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Last modified January 22 16:37 EST 2020. Contains 331152 sequences. (Running on oeis4.)