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A221726 as a simple table

n a(n)
1 0
2 16
3 0
4 464
5 0
6 13948
7 0
8 420736
9 0
10 12695288
11 0
12 383074904
13 0
14 11559126552
15 0
16 348791805904
17 0
18 10524646286488
19 0
20 317576778411352
21 0
22 9582745781519416
23 0
24 289155325092787296
25 0
26 8725140362031620984
27 0
28 263277441988312544616
29 0

[0,16,0,464,0,13948,0,420736,0,12695288,0,
 383074904,0,11559126552,0,348791805904,0,
 10524646286488,0,317576778411352,0,
 9582745781519416,0,289155325092787296,0,
 8725140362031620984,0,263277441988312544616,0]

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Last modified May 15 06:37 EDT 2024. Contains 372538 sequences. (Running on oeis4.)