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A035915 as a simple table

n a(n)
0 1
1 0
2 12168
3 0
4 24684816
5 0
6 20050650776
7 0
8 8739210543648
9 0
10 2375502273471912
11 0
12 441550716354149168
13 0
14 59738920517881797816
15 0
16 6154813102726791038016
17 0
18 499745917657668459264968
19 0
20 32852573414724334471351632
21 0
22 1787037602269852702724731608
23 0
24 81893843128627116973312755296
25 0

[1,0,12168,0,24684816,0,20050650776,0,
 8739210543648,0,2375502273471912,0,
 441550716354149168,0,59738920517881797816,0,
 6154813102726791038016,0,499745917657668459264968,
 0,32852573414724334471351632,0,
 1787037602269852702724731608,0,
 81893843128627116973312755296,0]

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Last modified May 21 05:07 EDT 2022. Contains 353887 sequences. (Running on oeis4.)