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A172021 as a simple table

n a(n)
1 1
2 1
3 2
4 2
5 1
6 2
7 4
8 6
9 6
10 1
11 2
12 4
13 8
14 14
15 20
16 20
17 1
18 2
19 4
20 8
21 16
22 30
23 50
24 70
25 70
26 1
27 2
28 4
29 8
30 16
31 32
32 62
33 112
34 182
35 252
36 252
37 1
38 2
39 4
40 8
41 16
42 32
43 64
44 126
45 238
46 420
47 672
48 924
49 924
50 1
51 2
52 4
53 8
54 16
55 32
56 64
57 128
58 254
59 492
60 912
61 1584
62 2508
63 3432
64 3432

[1,1,2,2,1,2,4,6,6,1,2,4,8,14,20,20,1,2,4,8,16,30,
 50,70,70,1,2,4,8,16,32,62,112,182,252,252,1,2,4,8,
 16,32,64,126,238,420,672,924,924,1,2,4,8,16,32,64,
 128,254,492,912,1584,2508,3432,3432]

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Last modified April 19 11:14 EDT 2024. Contains 371791 sequences. (Running on oeis4.)