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A285559 as a simple table

n a(n)
0 1
1 1
2 6
3 3
4 28
5 7
6 120
7 111
8 432
9 223
10 1760
11 959
12 7872
13 4991
14 24448
15 20223
16 125696
17 77311
18 499200
19 523263
20 1207296
21 1783807
22 6420480
23 4124671
24 30846976
25 14344191
26 121495552
27 57655295
28 434290688
29 518750207
30 1316454400
31 1807679487
32 8251965440
33 1280180223

[1,1,6,3,28,7,120,111,432,223,1760,959,7872,4991,
 24448,20223,125696,77311,499200,523263,1207296,
 1783807,6420480,4124671,30846976,14344191,
 121495552,57655295,434290688,518750207,1316454400,
 1807679487,8251965440,1280180223]

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Last modified June 1 19:32 EDT 2020. Contains 334762 sequences. (Running on oeis4.)