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A055151 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 1
5 3
6 1
7 6
8 2
9 1
10 10
11 10
12 1
13 15
14 30
15 5
16 1
17 21
18 70
19 35
20 1
21 28
22 140
23 140
24 14
25 1
26 36
27 252
28 420
29 126
30 1
31 45
32 420
33 1050
34 630
35 42
36 1
37 55
38 660
39 2310
40 2310
41 462
42 1
43 66
44 990
45 4620
46 6930
47 2772
48 132
49 1
50 78
51 1430
52 8580
53 18018
54 12012
55 1716
56 1
57 91
58 2002
59 15015
60 42042

[1,1,1,1,1,3,1,6,2,1,10,10,1,15,30,5,1,21,70,35,1,
 28,140,140,14,1,36,252,420,126,1,45,420,1050,630,
 42,1,55,660,2310,2310,462,1,66,990,4620,6930,2772,
 132,1,78,1430,8580,18018,12012,1716,1,91,2002,
 15015,42042]

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Last modified March 28 08:00 EDT 2024. Contains 371235 sequences. (Running on oeis4.)