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A190389 as a simple table

n a(n)
1 1
2 2
3 2
4 0
5 0
6 36
7 144
8 672
9 0
10 688
11 161420
12 1568320
13 16640624
14 234147048
15 2955532608
16 39844932096 

[1,2,2,0,0,36,144,672,0,688,161420,1568320,
 16640624,234147048,2955532608,39844932096]

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Last modified July 12 23:13 EDT 2024. Contains 374257 sequences. (Running on oeis4.)