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A127189 as a simple table

n a(n)
0 1
1 1
2 -5
3 39
4 -423
5 5985
6 -105885
7 2269575
8 -57475215
9 1684565505
10 -56176247925
11 2101511463975
12 -87163146984375
13 3969387329933025
14 -196863216968342925
15 10560219055989978375
16 -609129291476291961375
17 37591662102746977850625
18 -2471292534125033454961125

[1,1,-5,39,-423,5985,-105885,2269575,-57475215,
 1684565505,-56176247925,2101511463975,
 -87163146984375,3969387329933025,
 -196863216968342925,10560219055989978375,
 -609129291476291961375,37591662102746977850625,
 -2471292534125033454961125]

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Last modified March 29 15:03 EDT 2020. Contains 333107 sequences. (Running on oeis4.)