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A111805 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 15
5 1
6 1
7 70
8 45
9 1
10 1
11 210
12 495
13 91
14 1
15 1
16 495
17 3003
18 1820
19 153
20 1
21 1
22 1001
23 12870
24 18564
25 4845
26 231
27 1
28 1
29 1820
30 43758
31 125970
32 74613
33 10626
34 325
35 1
36 1
37 3060
38 125970
39 646646
40 735471
41 230230
42 20475
43 435
44 1
45 1
46 4845
47 319770
48 2704156
49 5311735

[1,1,1,1,15,1,1,70,45,1,1,210,495,91,1,1,495,3003,
 1820,153,1,1,1001,12870,18564,4845,231,1,1,1820,
 43758,125970,74613,10626,325,1,1,3060,125970,
 646646,735471,230230,20475,435,1,1,4845,319770,
 2704156,5311735]

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Last modified November 17 23:26 EST 2019. Contains 329242 sequences. (Running on oeis4.)