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A222057 as a simple table

n a(n)
1 1
2 1
3 3
4 1
5 9
6 11
7 1
8 21
9 66
10 50
11 1
12 45
13 275
14 500
15 274
16 1
17 93
18 990
19 3250
20 4110
21 1764
22 1
23 189
24 3311
25 17500
26 38360
27 37044
28 13068
29 1
30 381
31 10626
32 85050
33 287700
34 469224
35 365904
36 109584
37 1
38 765
39 33275
40 388500
41 1904574
42 4667544
43 6037416
44 3945024
45 1026576
46 1
47 1533
48 102630
49 1705250
50 11651850
51 40266828
52 76839840
53 82188000
54 46195920
55 10628640

[1,1,3,1,9,11,1,21,66,50,1,45,275,500,274,1,93,
 990,3250,4110,1764,1,189,3311,17500,38360,37044,
 13068,1,381,10626,85050,287700,469224,365904,
 109584,1,765,33275,388500,1904574,4667544,6037416,
 3945024,1026576,1,1533,102630,1705250,11651850,
 40266828,76839840,82188000,46195920,10628640]

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Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)