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A216797 as a simple table

n a(n)
1 0
2 10
3 0
4 292
5 0
6 10140
7 0
8 361200
9 0
10 12911864
11 0
12 461788640
13 0
14 16516859104
15 0
16 590766585904
17 0
18 21130267285488
19 0
20 755777826856944
21 0
22 27032319708816080
23 0
24 966879797484085808
25 0
26 34582919761038885136
27 0
28 1236946249622251150000
29 0

[0,10,0,292,0,10140,0,361200,0,12911864,0,
 461788640,0,16516859104,0,590766585904,0,
 21130267285488,0,755777826856944,0,
 27032319708816080,0,966879797484085808,0,
 34582919761038885136,0,1236946249622251150000,0]

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Last modified September 24 22:14 EDT 2023. Contains 365582 sequences. (Running on oeis4.)