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A047919 as a simple table

n a(n)
1 1
2 1
3 0
4 2
5 0
6 0
7 2
8 0
9 0
10 4
11 4
12 0
13 0
14 0
15 20
16 2
17 4
18 6
19 0
20 0
21 108
22 6
23 0
24 0
25 0
26 0
27 0
28 714
29 4
30 4
31 0
32 40
33 0
34 0
35 0
36 4992
37 6
38 0
39 30
40 0
41 0
42 0
43 0
44 0
45 40284
46 4
47 16
48 0
49 0
50 380
51 0
52 0
53 0
54 0
55 362480
56 10
57 0
58 0
59 0
60 0
61 0
62 0
63 0
64 0
65 0
66 3628790
67 4
68 8
69 60
70 312
71 0
72 3768
73 0
74 0
75 0
76 0

[1,1,0,2,0,0,2,0,0,4,4,0,0,0,20,2,4,6,0,0,108,6,0,
 0,0,0,0,714,4,4,0,40,0,0,0,4992,6,0,30,0,0,0,0,0,
 40284,4,16,0,0,380,0,0,0,0,362480,10,0,0,0,0,0,0,
 0,0,0,3628790,4,8,60,312,0,3768,0,0,0,0]

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Last modified April 8 04:26 EDT 2020. Contains 333312 sequences. (Running on oeis4.)