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A278544 as a simple table

n a(n)
0 0
1 1
2 1
3 5
4 1
5 21
6 8
7 31
8 1
9 123
10 55
11 459
12 12
13 705
14 71
15 247
16 1
17 951
18 460
19 14175
20 119
21 49275
22 2825
23 19305
24 18
25 30075
26 3745
27 105975
28 167
29 40845
30 886
31 2927
32 1
33 11091
34 5585
35 789075
36 1554
37 10546875
38 175175
39 4276125
40 275
41 14482125
42 1004500
43 186553125
44 13573
45 77371875
46 264775
47 1656585
48 24
49 2599275
50 354515
51 169509375
52 19789
53 566409375
54 2055550
55 48691125
56 311

[0,1,1,5,1,21,8,31,1,123,55,459,12,705,71,247,1,
 951,460,14175,119,49275,2825,19305,18,30075,3745,
 105975,167,40845,886,2927,1,11091,5585,789075,
 1554,10546875,175175,4276125,275,14482125,1004500,
 186553125,13573,77371875,264775,1656585,24,
 2599275,354515,169509375,19789,566409375,2055550,
 48691125,311]

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Last modified September 19 08:05 EDT 2021. Contains 347556 sequences. (Running on oeis4.)