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A157631 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 66
5 1
6 1
7 595
8 595
9 1
10 1
11 3684
12 69846
13 3684
14 1
15 1
16 19909
17 1933146
18 1933146
19 19909
20 1
21 1
22 102246
23 32826431
24 367083252
25 32826431
26 102246
27 1
28 1
29 515671
30 437744405
31 21290184979
32 21290184979
33 437744405
34 515671
35 1
36 1
37 2585160

[1,1,1,1,66,1,1,595,595,1,1,3684,69846,3684,1,1,
 19909,1933146,1933146,19909,1,1,102246,32826431,
 367083252,32826431,102246,1,1,515671,437744405,
 21290184979,21290184979,437744405,515671,1,1,
 2585160]

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Last modified January 17 17:55 EST 2020. Contains 330986 sequences. (Running on oeis4.)