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A078521 as a simple table

n a(n)
1 1
2 0
3 -1
4 0
5 -3
6 1
7 0
8 -8
9 9
10 -1
11 0
12 -42
13 59
14 -18
15 1
16 0
17 -144
18 450
19 -215
20 30
21 -1
22 0
23 -1440
24 3394
25 -2475
26 565
27 -45
28 1
29 0
30 -5760
31 30912
32 -28294
33 9345
34 -1225
35 63
36 -1
37 0
38 -75600
39 293292
40 -340116
41 147889
42 -27720
43 2338
44 -84
45 1
46 0
47 -524160
48 3032208
49 -4335596
50 2341332
51 -579369
52 69552
53 -4074
54 108
55 -1
56 0
57 -6531840

[1,0,-1,0,-3,1,0,-8,9,-1,0,-42,59,-18,1,0,-144,
 450,-215,30,-1,0,-1440,3394,-2475,565,-45,1,0,
 -5760,30912,-28294,9345,-1225,63,-1,0,-75600,
 293292,-340116,147889,-27720,2338,-84,1,0,-524160,
 3032208,-4335596,2341332,-579369,69552,-4074,108,
 -1,0,-6531840]

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Last modified May 2 07:19 EDT 2024. Contains 372178 sequences. (Running on oeis4.)