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A215122 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 2
5 0
6 0
7 8
8 8
9 0
10 0
11 30
12 174
13 30
14 0
15 0
16 112
17 2084
18 2084
19 112
20 0
21 0
22 420
23 21025
24 52808
25 21025
26 420
27 0
28 0
29 1584
30 194064
31 994788
32 994788
33 194064
34 1584
35 0
36 0
37 6006
38 1694224
39 16074586
40 31497284
41 16074586
42 1694224
43 6006
44 0

[1,0,0,0,2,0,0,8,8,0,0,30,174,30,0,0,112,2084,
 2084,112,0,0,420,21025,52808,21025,420,0,0,1584,
 194064,994788,994788,194064,1584,0,0,6006,1694224,
 16074586,31497284,16074586,1694224,6006,0]

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Last modified July 23 15:58 EDT 2019. Contains 325258 sequences. (Running on oeis4.)