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A261761 as a simple table

n a(n)
1 2
2 4
3 4
4 0
5 20
6 0
7 11
8 19
9 19
10 11
11 0
12 100
13 19
14 100
15 0
16 31
17 165
18 99
19 99
20 165
21 31
22 0
23 353
24 138
25 2673
26 138
27 353
28 0
29 0
30 885
31 197
32 4797
33 4797
34 197
35 885
36 0
37 0
38 3548
39 380
40 53564
41 7014
42 53564
43 380
44 3548
45 0
46 0
47 8661
48 2580
49 174125
50 82711
51 82711
52 174125
53 2580
54 8661
55 0
56 0

[2,4,4,0,20,0,11,19,19,11,0,100,19,100,0,31,165,
 99,99,165,31,0,353,138,2673,138,353,0,0,885,197,
 4797,4797,197,885,0,0,3548,380,53564,7014,53564,
 380,3548,0,0,8661,2580,174125,82711,82711,174125,
 2580,8661,0,0]

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Last modified October 18 17:09 EDT 2021. Contains 348068 sequences. (Running on oeis4.)