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A103328 as a simple table

n a(n)
0 0
1 2
2 0
3 4
4 4
5 0
6 6
7 20
8 6
9 0
10 8
11 56
12 56
13 8
14 0
15 10
16 120
17 252
18 120
19 10
20 0
21 12
22 220
23 792
24 792
25 220
26 12
27 0
28 14
29 364
30 2002
31 3432
32 2002
33 364
34 14
35 0
36 16
37 560
38 4368
39 11440
40 11440
41 4368
42 560
43 16
44 0
45 18
46 816
47 8568
48 31824
49 48620
50 31824
51 8568
52 816
53 18
54 0
55 20
56 1140
57 15504

[0,2,0,4,4,0,6,20,6,0,8,56,56,8,0,10,120,252,120,
 10,0,12,220,792,792,220,12,0,14,364,2002,3432,
 2002,364,14,0,16,560,4368,11440,11440,4368,560,16,
 0,18,816,8568,31824,48620,31824,8568,816,18,0,20,
 1140,15504]

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Last modified May 19 14:45 EDT 2024. Contains 372698 sequences. (Running on oeis4.)