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A180515 as a simple table

n a(n)
0 0
1 0
2 1
3 0
4 0
5 3
6 0
7 0
8 198
9 0
10 0
11 15390
12 0
13 0
14 4611168
15 0
16 0
17 1829539224
18 0
19 0
20 1492247906784
21 0
22 0
23 1669958449339824
24 0
25 0
26 2955696363525356640
27 0
28 0
29 7028088099915471491520
30 0
31 0
32 23308039026983275082311680
33 0
34 0
35 100343481973929775498656672000

[0,0,1,0,0,3,0,0,198,0,0,15390,0,0,4611168,0,0,
 1829539224,0,0,1492247906784,0,0,1669958449339824,
 0,0,2955696363525356640,0,0,
 7028088099915471491520,0,0,
 23308039026983275082311680,0,0,
 100343481973929775498656672000]

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Last modified April 24 04:02 EDT 2024. Contains 371918 sequences. (Running on oeis4.)