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A109898 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 3
9 0
10 0
11 0
12 40
13 0
14 0
15 3003
16 105
17 0
18 71680
19 0
20 24192
21 2078505
22 0
23 0
24 330
25 4216455243
26 0
27 2788660875
28 39536640
29 0
30 256256
31 0
32 16380
33 6153560492625
34 0
35 276348105
36 15841280
37 0
38 0
39 20228646742486875
40 1116288
41 0
42 1190707200
43 0

[0,0,0,0,0,0,0,3,0,0,0,40,0,0,3003,105,0,71680,0,
 24192,2078505,0,0,330,4216455243,0,2788660875,
 39536640,0,256256,0,16380,6153560492625,0,
 276348105,15841280,0,0,20228646742486875,1116288,
 0,1190707200,0]

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Last modified May 6 09:17 EDT 2021. Contains 343580 sequences. (Running on oeis4.)