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A004747 as a simple table

n a(n)
1 1
2 2
3 1
4 10
5 6
6 1
7 80
8 52
9 12
10 1
11 880
12 600
13 160
14 20
15 1
16 12320
17 8680
18 2520
19 380
20 30
21 1
22 209440
23 151200
24 46480
25 7840
26 770
27 42
28 1
29 4188800
30 3082240
31 987840
32 179760
33 20160
34 1400
35 56
36 1
37 96342400
38 71998080
39 23826880
40 4583040
41 562800
42 45360
43 2352
44 72
45 1

[1,2,1,10,6,1,80,52,12,1,880,600,160,20,1,12320,
 8680,2520,380,30,1,209440,151200,46480,7840,770,
 42,1,4188800,3082240,987840,179760,20160,1400,56,
 1,96342400,71998080,23826880,4583040,562800,45360,
 2352,72,1]

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Last modified April 23 05:42 EDT 2021. Contains 343199 sequences. (Running on oeis4.)