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A214806 as a simple table

n a(n)
0 0
1 0
2 488
3 0
4 11660
5 375552
6 0
7 160680
8 6652366
9 146387872
10 0
11 1678880
12 86303920
13 2298445830
14 42795288180
15 0
16 14771680
17 918342738
18 28995928200
19 629732269188
20 10663498973088

[0,0,488,0,11660,375552,0,160680,6652366,
 146387872,0,1678880,86303920,2298445830,
 42795288180,0,14771680,918342738,28995928200,
 629732269188,10663498973088]

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Last modified February 24 04:36 EST 2020. Contains 332197 sequences. (Running on oeis4.)