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A056940 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 5
5 1
6 1
7 15
8 15
9 1
10 1
11 35
12 105
13 35
14 1
15 1
16 70
17 490
18 490
19 70
20 1
21 1
22 126
23 1764
24 4116
25 1764
26 126
27 1
28 1
29 210
30 5292
31 24696
32 24696
33 5292
34 210
35 1
36 1
37 330
38 13860
39 116424
40 232848
41 116424
42 13860
43 330
44 1
45 1
46 495
47 32670
48 457380
49 1646568
50 1646568
51 457380

[1,1,1,1,5,1,1,15,15,1,1,35,105,35,1,1,70,490,490,
 70,1,1,126,1764,4116,1764,126,1,1,210,5292,24696,
 24696,5292,210,1,1,330,13860,116424,232848,116424,
 13860,330,1,1,495,32670,457380,1646568,1646568,
 457380]

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Last modified February 21 23:44 EST 2019. Contains 320381 sequences. (Running on oeis4.)