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A143173 as a simple table

n a(n)
1 1
2 3
3 1
4 21
5 9
6 1
7 231
8 84
9 27
10 18
11 1
12 3465
13 1155
14 630
15 210
16 135
17 30
18 1
19 65835
20 20790
21 10395
22 4410
23 3465
24 3780
25 405
26 420
27 405
28 45
29 1
30 1514205
31 460845
32 218295
33 169785
34 72765
35 72765
36 30870
37 19845
38 8085
39 13230
40 2835
41 735
42 945
43 63
44 1
45 40883535
46 12113640
47 5530140
48 4074840

[1,3,1,21,9,1,231,84,27,18,1,3465,1155,630,210,
 135,30,1,65835,20790,10395,4410,3465,3780,405,420,
 405,45,1,1514205,460845,218295,169785,72765,72765,
 30870,19845,8085,13230,2835,735,945,63,1,40883535,
 12113640,5530140,4074840]

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Last modified May 26 22:57 EDT 2019. Contains 323597 sequences. (Running on oeis4.)