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A035890 as a simple table

n a(n)
0 1
1 0
2 1568
3 0
4 410816
5 0
6 43381856
7 0
8 2485013888
9 0
10 90102925472
11 0
12 2275791199808
13 0
14 42760561395424
15 3758096384
16 627153507629824
17 544923975680
18 7450881715909408
19 27028229193728
20 73852826419374016

[1,0,1568,0,410816,0,43381856,0,2485013888,0,
 90102925472,0,2275791199808,0,42760561395424,
 3758096384,627153507629824,544923975680,
 7450881715909408,27028229193728,73852826419374016]

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Last modified May 20 06:18 EDT 2022. Contains 353852 sequences. (Running on oeis4.)