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A169775 as a simple table

n a(n)
4 2
5 0
6 0
7 0
8 8
9 0
10 16
11 0
12 48
13 0
14 200
15 0
16 616
17 0
18 1832
19 0
20 6008
21 0
22 19304
23 0
24 62180
25 0
26 189580
27 0
28 615792
29 0
30 1895952
31 0
32 6136708
33 0
34 18699436
35 0
36 60490008
37 0
38 184450888
39 0
40 595959276
41 0
42 1811054676
43 0
44 5847417040
45 0
46 17754996288
47 0
48 57292227492

[2,0,0,0,8,0,16,0,48,0,200,0,616,0,1832,0,6008,0,
 19304,0,62180,0,189580,0,615792,0,1895952,0,
 6136708,0,18699436,0,60490008,0,184450888,0,
 595959276,0,1811054676,0,5847417040,0,17754996288,
 0,57292227492]

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Last modified April 16 16:13 EDT 2024. Contains 371749 sequences. (Running on oeis4.)