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A001263 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 3
6 1
7 1
8 6
9 6
10 1
11 1
12 10
13 20
14 10
15 1
16 1
17 15
18 50
19 50
20 15
21 1
22 1
23 21
24 105
25 175
26 105
27 21
28 1
29 1
30 28
31 196
32 490
33 490
34 196
35 28
36 1
37 1
38 36
39 336
40 1176
41 1764
42 1176
43 336
44 36
45 1
46 1
47 45
48 540
49 2520
50 5292
51 5292
52 2520
53 540
54 45
55 1
56 1
57 55
58 825
59 4950
60 13860
61 19404
62 13860
63 4950
64 825

[1,1,1,1,3,1,1,6,6,1,1,10,20,10,1,1,15,50,50,15,1,
 1,21,105,175,105,21,1,1,28,196,490,490,196,28,1,1,
 36,336,1176,1764,1176,336,36,1,1,45,540,2520,5292,
 5292,2520,540,45,1,1,55,825,4950,13860,19404,
 13860,4950,825]

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Last modified November 21 15:03 EST 2018. Contains 317449 sequences. (Running on oeis4.)